Hope you can help. Got 2 large scale planes with royal srs, pbr9 (2 each) using powerbus to bus for elev and rudder. All firmware rx and Core have latest updates. With the Core close to the aircraft every couple of minutes the servos glitch (quick jump up and down). It seems that it only happens on servos connected to powerbus (powerbus to bus). Interesting both aircraft does the same so can't be airframe specific.
Is it anything of concern as these aircraft are new and just setup ready for test flights?