Mission Planner Don't Send Joystick command

Hi I worked with nextvision camera, with mission planner that based on 1.3.8.1 , joystick is enabled, while I connect the video streaming, the MP after several minutes 1-10 start to have issues of sending data to the flight controller, I looked with wireshark and use the mav plugin for the ICD, it seems that the MP get only RX packets and didn’t succeed to send around 0.5 sec to 1.5 seconds , so the flight controller move to FS (the RC_FS_TIME_OUT is 0.5 seconds and RC_FS_OVERIDE_TIME_OUT is 3 seconds), I start to debug it and notice that we didn’t enter to MainV2 where we send the joystick command for this time, I would love to get any help on this issue
The setup-
Controller–>laptop with MP based on 1.3.8.1 —> ethernet cable—>nextvision trip5—> Serial—>orangecube