FrSky X6R receiver only channel 1 and 2 are working

hello, im using speedybee F405 WING with FrSky X6R receiver thru SBUS, im sending 5 Channels to the receiver with rc transmiter but only the channels 1 and 2 are moving in the Mission planner in radio calibration tab, could this be transmiter issue? We tried 2 diffrent receivers and both act the same

It very uncommon the transmiter limits it’s channels number.
Have a look at:
Each channel params like for 1 here:

RC1_DZ,30
RC1_MAX,2006
RC1_MIN,997
RC1_OPTION,0
RC1_REVERSED,0
RC1_TRIM,1397

or even a channels maps:

RCMAP_PITCH,3
RCMAP_ROLL,2
RCMAP_THROTTLE,1
RCMAP_YAW,4

With a servo (or oscilloscope or tester) you can check what’s on receiver outputs as well.