This is a list of issues discovered during Copter and Rover 4.5 testing. The [is…sues list for Copter/Rover-4.4 is here](https://github.com/ArduPilot/ardupilot/issues/23192).
[Backport PRs](https://github.com/orgs/ArduPilot/projects/8/views/1).
Reports requiring investigation:
- [ ] EKF3 control scaling causes drift away in high winds ([issue](https://github.com/ArduPilot/ardupilot/issues/28242), [discussion](https://discuss.ardupilot.org/t/what-is-limiting-the-maximum-lean-angle-for-position-controller-in-non-gps-modes/123329))
- [ ] Visual Odometry arming check should check latest quality from camera ([issue](https://github.com/ArduPilot/ardupilot/issues/28214))
- [ ] EKF3 altitude slow correction with GPS broken? ([discussion](https://discuss.ardupilot.org/t/ekf3-use-barometer-and-gps-for-altitude-posz/119540), [related PR](https://github.com/ArduPilot/ardupilot/pull/26917))
- [ ] Lua scripting binding for "play_tune" not working (reported by muramura in general channel)
- [ ] OmnibusF4 lost External Baro support? ([issue](https://github.com/ArduPilot/ardupilot/issues/27315))
- [ ] MR72 CAN rangefinder not adding distances to OA database ([issue](https://github.com/ArduPilot/ardupilot/issues/27216))
- [ ] Alexmos not working ([Plane forum discussion](https://discuss.ardupilot.org/t/plane-4-5-release/115620/19))
- [ ] Auto mode using rangefinder should trigger failsafe if user disables rangefinder (reported by Harris Aerial)
- [ ] Custom build server of MatekH743 + flowhold ([discussion](https://discuss.ardupilot.org/t/copter-4-5-1-released/115973/55))
- [ ] DShot 600 jerky movement without being armed ([discussion](https://discuss.ardupilot.org/t/copter-4-5-0-released/115614/21)) -- configuration error (MOT_PWM_TYPE = 0 but SERVO_BLH_MASK non-zero) -- AndyP
- [ ] Lua mount:set-angle-target binding doesn't work on Matek H743 mini V3 ([discussion](https://discuss.ardupilot.org/t/copter-4-5-0-released/115614/3)) -- Randy
- [ ] CAM messages with Img field "0" appearing in logs without pictures being taken (reported by Randy) -- Randy
Confirmed issues:
- [ ] SCurves internal error ([discussion](https://discuss.ardupilot.org/t/copter-4-5-3-beta1-is-available-for-beta-testing/117962/10))
- [ ] LD06 proximity sensor buffer overflow (reported in Discord Rover channel, [PR](https://github.com/ArduPilot/ardupilot/pull/27059))
- [ ] Rover watchdog on 4.5.1 ([discussion](https://discuss.ardupilot.org/t/rover-4-5-2-beta1-available-for-beta-testing/117186/7))
- [ ] RPLidarS1 erratic distances on Rover ([discussion](https://discuss.ardupilot.org/t/rplidar-s1-erratic-distances/115561), [possible fix](https://github.com/rmackay9/rmackay9-ardupilot/commits/rover-rplidar-update-rate/), [PR](https://github.com/ArduPilot/ardupilot/pull/26835)) -- Randy, Mirkix
- [ ] SmartRTL flow of control error ([pre-existing issue](https://github.com/ArduPilot/ardupilot/issues/17416)) -- Randy, PeterB
- [ ] APM_Config can't be used to include/exclude features ([issue](https://github.com/ArduPilot/ardupilot/issues/26654))
Enhancements or Issues that may not be resolved before the stable release:
- [ ] ESC Telemetry on OSD for Servo9 ([issue](https://github.com/ArduPilot/ardupilot/issues/27064)) -- andy1piper says this is caused by a bug fix and so an enhancement request is required
- [ ] DJI RS2 lock/follow not working? ([discussion](https://discuss.ardupilot.org/t/ap-support-for-dji-rs2-rsc2-rs3-gimbals-maybe/91830/39), [issue](https://github.com/ArduPilot/ardupilot/issues/27016)) -- existing issue
- [ ] CAM2 using CAM1 servo output ([discussion](https://discuss.ardupilot.org/t/separate-cam1-and-cam2-triggering/117468), [issue](https://github.com/ArduPilot/ardupilot/issues/27015))
- [ ] https://github.com/ArduPilot/ardupilot/issues/26892
- [ ] Rover multiple inclusion fence support ([discussion](https://discuss.ardupilot.org/t/change-fence-enable-during-mission/116690/8), [WIP PR](https://github.com/ArduPilot/ardupilot/pull/15550))
- [ ] GPS consistency checks Alt when GPS can't provide alt ([discussion](https://discuss.ardupilot.org/t/incorrect-calculation-of-gps-positions-diffs-during-arming-checks/116033), [issue](https://github.com/ArduPilot/ardupilot/issues/26749))
- [x] Custom Build server support for CUAV Pixhack v3x with 3 IMUs ([discussion](https://discuss.ardupilot.org/t/ardupilot-custom-firmware-builder-fmuv3-missing-necessary-for-cuav-pixhack-v3x/115823), [product page](https://www.cuav.net/en/pixhack-v3-autopilot/))
- [ ] AP_OSD: Add CRSF link stats display fields ([PR](https://github.com/ArduPilot/ardupilot/pull/25844))
- [ ] Network params not visible for Pixhawk5x ([discussion](https://discuss.ardupilot.org/t/copter-4-5-0-beta2-available-for-beta-testing/113156/13), [issue](https://github.com/ArduPilot/ardupilot/issues/26397))
- [ ] ViewPro does not track GPS location well ([discussion](https://discuss.ardupilot.org/t/viewpro-gimbal-point-camera-here-function/98279/33), known limitation of ViewPro API)
Wiki issues/enhancement requests:
- [x] https://github.com/ArduPilot/ardupilot_wiki/issues/5916
- [x] Dynamic Notch filter instructions need consolidation ([issue](https://github.com/ArduPilot/ardupilot_wiki/issues/5878))
- [x] Auto mode LOITER_TURNS does not support CCW? ([discussion](https://discuss.ardupilot.org/t/ccw-loiter-turns/114282))
- [ ] Add vertical position controller tuning instructions ([discussion](https://discuss.ardupilot.org/t/z-oscillation-in-position-hold/113149/4))
- [x] Add warning for AutoTune ESC desync ([issue](https://github.com/ArduPilot/ardupilot_wiki/issues/5760))
Mission planner issues/enhancement requests:
- [ ] add DO_FENCE_ENABLE to Rover (and Copter?) mission command list ([discussion](https://discuss.ardupilot.org/t/change-fence-enable-during-mission/116690))
- [ ] fixup camera gimbal page ([discussion](https://discuss.ardupilot.org/t/question-about-camera-gimbal/101063/7))
- [ ] Loiter turns radius incorrect ([issue](https://github.com/ArduPilot/MissionPlanner/issues/3305))
QGC issues/enhancement requests:
- [x] QGC sending invalid roll, pitch, yaw angles ([discussion](https://discuss.ardupilot.org/t/mount-invalid-angle-targets-problem/113885), [QGC issue](https://github.com/mavlink/qgroundcontrol/issues/11215))
Resolved issues:
- [x] 4.5.6 crash dump on startup (reported by lthall) -- DroneCAN locking issue -- fixed in 4.5.7-beta1
- [x] Windows Cygwin build broken ([issue](https://github.com/ArduPilot/ardupilot/issues/27867), [PR](https://github.com/ArduPilot/ardupilot/pull/27987)) -- fixed and will be included in Copter-4.6.0
- [x] **EKF Wind estimates not available when using GPS-for-yaw ([issue](https://github.com/ArduPilot/ardupilot/issues/26650), [PR](https://github.com/ArduPilot/ardupilot/pull/27636))** -- fixed for 4.5.6-rc1
- [x] Guided mode yaw when WP_YAW_BEHAVE = 0 ([issue](https://github.com/ArduPilot/ardupilot/issues/27317), [PR](https://github.com/ArduPilot/ardupilot/pull/27318)) -- fixed ahead of 4.5.5
- [x] https://github.com/ArduPilot/ardupilot/issues/27171 -- resolved ahead of 4.5.4-rc1
- [x] EKF3 endless climb with EK3_OGN_HGT_MASK ([PR](https://github.com/ArduPilot/ardupilot/pull/26917))
- [x] Kakute buzzer scream ([issue](https://github.com/ArduPilot/ardupilot/issues/27120)) -- custom developmen issue
- [x] https://github.com/ArduPilot/ardupilot/issues/27017 ([PR](https://github.com/ArduPilot/ardupilot/pull/27099))
- [x] CubeOrange with Siyi A8 failing to boot 1 in 20 times ([issue](https://github.com/ArduPilot/ardupilot/issues/26852)) -- fixed with Siyi firmware 0.3.7
- [x] Lua rangefinder broken ([discussion](https://discuss.ardupilot.org/t/send-sensor-distance-by-using-serial-in-script/116238), [PR](https://github.com/ArduPilot/ardupilot/pull/26829)) -- resolved for 4.5.3-beta1
- [x] NoopLoop TOFSense-P noise ([discussion](https://discuss.ardupilot.org/t/rangefiner-on-fast-speed-low-altitude-quadcopter/116591/14)) -- not 4.5.0, cannot reproduce (Rishabh)
- [x] Jump message missing from telementry? ([discussion](https://discuss.ardupilot.org/t/copter-4-5-1-released/115973/25), [issue](https://github.com/ArduPilot/ardupilot/issues/26802), [PR](https://github.com/ArduPilot/ardupilot/pull/27003)) -- PeterB -- resolved for 4.5.3-beta1
- [x] RC SBus input on Navio2 ([discussion](https://discuss.ardupilot.org/t/rc-channels-stuck-and-not-following-sys-kernel-rcio-rcin-ch/117191)) -- QGC issue
- [x] Avoidance backup for Z-axis is unconstrained ([PR](https://github.com/ArduPilot/ardupilot/pull/26858)) -- fixed for 4.5.3-beta1
- [x] Pixhawk 6C SBUS out not working with Tarot gimbal ([discussion](https://discuss.ardupilot.org/t/copter-4-5-0-released/115614/12), [issue1](https://github.com/ArduPilot/ardupilot/issues/26815), [PR](https://github.com/ArduPilot/ardupilot/pull/26825), [issue 2](https://github.com/ArduPilot/ardupilot/issues/26851), [PR](https://github.com/ArduPilot/ardupilot/pull/26898)) -- fixed in 4.5.2-beta1
- [x] Pixhawk6C mini compass disappearing in flight issue ([4.4 issue](https://github.com/ArduPilot/ardupilot/issues/25946), [4.5 discussion](https://discuss.ardupilot.org/t/copter-4-5-0-beta2-available-for-beta-testing/113156/3), [PR](https://github.com/ArduPilot/ardupilot/pull/26929)) -- hardware issue, work around ready for 4.5.3-beta1
- [x] Neopixels broken ([discussion](https://discuss.ardupilot.org/t/multiple-neopixels-dont-flash-in-sync/113620), [issue](https://github.com/ArduPilot/ardupilot/issues/26295), [PR-to-blame](https://github.com/ArduPilot/ardupilot/pull/23974), [PR with fix](https://github.com/ArduPilot/ardupilot/pull/26899)) -- fixed for 4.5.3-beta1
- [x] Stabilize mode Internal Error in Land Detector ([discussion](https://discuss.ardupilot.org/t/copter-4-5-0-released/115614/75), [issue](https://github.com/ArduPilot/ardupilot/issues/26864), [code](https://github.com/ArduPilot/ardupilot/blob/master/ArduCopter/land_detector.cpp#L59), [PR](https://github.com/ArduPilot/ardupilot/pull/26873)) -- fixed for 4.5.3-beta1
- [x] Copter-4.6 filter issue ([discussion](https://discuss.ardupilot.org/t/notch-filters-turn-on-with-a-delay/116276/14)) -- not present in 4.5
- [x] 3 of 12 Pixhawk6X display IOMCU error ([discussion](https://discuss.ardupilot.org/t/copter-4-5-1-released/115973/3)) -- AndyP, CUAV -- wrong IOMCU bootloader installed on the board (at factor?)
- [x] Gremsy can't be used as 2nd mount ([discussion](https://discuss.ardupilot.org/t/gremsy-zio-does-not-work-if-set-to-mount-2/116127)) -- Randy can't reproduce, assumed ZIO issue, [added warning to wiki](https://github.com/ArduPilot/ardupilot_wiki/pull/5897)
- [x] Throw mode reliability ([discussion](https://discuss.ardupilot.org/t/diagnose-unpredictable-throw-mode/113314)) -- motor desync probably
- [x] EKF loses attitude estimate if COMPASS_LEARN set to 3 (inflight) and GPS-for-yaw used ([PR](https://github.com/ArduPilot/ardupilot/pull/26762)) -- Tridge / PaulR -- resolved for 4.5.2-beta1
- [x] Guide mode using thrust causes internal error ([issue](https://github.com/ArduPilot/ardupilot/issues/26865), [PR](https://github.com/ArduPilot/ardupilot/pull/26866)) -- resolved for 4.5.2-beta1
- [x] [MTF-01 Optical flow sensor](https://robofusion.net/products/mtf-01-integrated-laser-rangefinder-optical-flow-module-for-unmanned-aerial-vehicles-uavs?variant=47234517664063) not working ([discussion](https://discuss.ardupilot.org/t/4-5-0-has-issue-with-connection-to-mtf-01-optical-flow-sensor/116470)) -- set config on sensor to different component id. -- resolved for 4.5.2-beta1
- [x] DAL bug affecting VisualOdometry delay ([issue](https://github.com/ArduPilot/ardupilot/issues/26800), [PR](https://github.com/ArduPilot/ardupilot/pull/26813)) -- resolved for 4.5.2-beta1
- [x] Hereflow requires BRD_BOOTDELAY ([discussion](https://discuss.ardupilot.org/t/copter-4-5-0-released/115614/47), [PR](https://github.com/ArduPilot/ardupilot/pull/26753)) -- resolved for 4.5.2-beta1
- [x] RTL engaged below Home alt and using Terrain alt returning too high? (reported by Tridge and PeterB) -- RTL seems to be acting as expected. It was engaged at 121m above terrain and so that's the altitude it maintained until it returned home.
- [x] AP_Mount's default mode being overwritten by RC input ([discussion](https://discuss.ardupilot.org/t/copter-4-5-0-released/115614/69), [PR](https://github.com/ArduPilot/ardupilot/pull/26738)) -- resolved for 4.5.2-beta1
- [x] T265 not working ([discussion](https://discuss.ardupilot.org/t/vision-positioning-using-t265-does-not-work/115679), [related PR](https://github.com/ArduPilot/ardupilot/pull/23240)) -- user was using same sysid/compid as autopilot
- [x] Developer issues integrating CAN RangeFinder ([discussion1](https://discuss.ardupilot.org/t/issues-with-interegrating-can-sensor-using-lua/115585/5), [discussion2](https://discuss.ardupilot.org/t/help-related-to-dronecan/115874), [issue](https://github.com/ArduPilot/ardupilot/issues/26704)) -- worked at 1Mbps
- [x] GPS_TYPE parameter descriptions in MP using 4.4 ([issue](https://github.com/ArduPilot/ardupilot/issues/26681#issuecomment-2034416514), [PR](https://github.com/ArduPilot/ardupilot/pull/26740)) -- resolved for 4.5.2-beta1
- [x] #26811
- [x] Near Fly-away with 4.4.4 (EKF failsafe was disabled, [discussion](https://discuss.ardupilot.org/t/internal-errors-0x400-l-856-cnstring-nan-uncontrollable-behavior-in-rtl-and-loiter/115598)) -- no further communication, likely bad compass cal
- [x] KakuteH7 fails to initialise ([discussion](https://discuss.ardupilot.org/t/kakute-h7-gps-and-radio-problem/115931)) -- also failed on 4.4.4 so Randy has concluded that it is a hardware issue
- [x] Siyi mount stalls occasionally and bouncing near pitch and yaw limits ([discussion](https://discuss.ardupilot.org/t/copter-4-5-0-beta4-available-for-beta-testing/115149/11)) -- Siyi firmware / hardware mismatch
- [x] do-condition-yaw bug (also in 4.4, [PR](https://github.com/ArduPilot/ardupilot/pull/24719)) -- resolved for beta5 (assuming there is a beta5)
- [x] Copters turns North in Guided_NoGPS ([issue](https://github.com/ArduPilot/ardupilot/issues/26357), [discussion](https://discuss.ardupilot.org/t/set-attitude-target-with-guided-no-gps-lack-of-documentation/111845/24), [PR](https://github.com/ArduPilot/ardupilot/pull/26407)) -- fixed for beta5 (assuming there is a -beta5)
- [x] ViewPro not holding level during hard maneuvers ([PR](https://github.com/ArduPilot/ardupilot/pull/26556)) -- resolved in beta4 (although no confirmation from user) -- fixed for beta5 (assuming there is a -beta5)
- [x] altitude jump when GPS/Non-GPS transitions switching altitude source of ExtNav to Baro (reported by Randy) -- should jump when moving from camera->baro, cannot reproduce otherwise.
- [x] MP's MAVFtp can't download SYS files ([MP issue](https://github.com/ArduPilot/MissionPlanner/issues/3309)) -- SITL only issue
- [x] Logging removed on some boards? ([issue](https://github.com/ArduPilot/CustomBuild/issues/70), [PR](https://github.com/ArduPilot/ardupilot/pull/26421)) -- needs backport?
- [x] Sending unknown message ([issue](https://github.com/ArduPilot/ardupilot/issues/26358), [PR](https://github.com/ArduPilot/ardupilot/pull/26361)) -- resolved for -beta3
- [x] increasing k_format_version does not reset parameters (dev question, [issue](https://github.com/ArduPilot/ardupilot/issues/26336)) -- cannot reproduce, responses stopped
- [x] MAV_CMD_DO_SEND_SCRIPT_MESSAGE not working? ([discussion](https://discuss.ardupilot.org/t/is-mav-cmd-do-send-script-message-unsupported-on-copter-4-5/113787)) -- only supported as Mission command
- [x] TKOFF_RPM_MIN working? ([4.3.x discussion](https://discuss.ardupilot.org/t/takeoff-blocked-waiting-for-esc-rpm/113256)) -- fixed in 4.4
- [x] Record video while armed broken ([PR](https://github.com/ArduPilot/ardupilot/pull/26217)) -- resolved for -beta3
- [x] Parachute conversion issue ([issue](https://github.com/ArduPilot/ardupilot/issues/26132), [PR](https://github.com/ArduPilot/ardupilot/pull/26151)) -- resolved for beta2
- [x] Siyi running old camera fw message ([discussion](https://discuss.ardupilot.org/t/siyi-a8-camera-fw-version-reporting-issue/112870), [original discussion](https://discuss.ardupilot.org/t/siyi-a8-mini-4k-ai-mini-zoom-gimbal-camera-ai-identify-tracking-4k-1-1-7-inch-8mp-sony-sensor-6x-zoom/92133/673), [PR](https://github.com/ArduPilot/ardupilot/pull/26168)) -- resolved for beta2
- [x] Matek H743 watchdog ([discussion](https://discuss.ardupilot.org/t/locally-compiled-arducopter-4-5-0-beta1-fails-on-matekh743-due-to-watchdog/113029)) -- development environment issue
- [x] Stuck thread ([discussion](https://discuss.ardupilot.org/t/stuck-thread-and-failed-data-logging-error/112711/2)) -- exists in 4.4.4 as well, two devs say it's fine so concluded it is a hardware failure on the user's autopilot.
- [x] AutoTune crash -- ESC de-sync ([discussion](https://discuss.ardupilot.org/t/copter-4-5-0-beta1-available-for-beta-testing/112504/11))
- [x] Here4 does not support GPS-for-yaw (aka Moving baseline) ([discussion](https://discuss.ardupilot.org/t/gps-yaw-moving-baseline-with-dual-dronecan-here4/112357))
-