i think i understood what you mean after seeing it a couple of times. Does it happen often ?
did you use GPS and altitude hold at this time ? or only stabilize mode ?
It happens a bit i would say with no real noticeable time interval. The whole flight was a test flight where the drone hovered in Poshold.
I saw I had the frame setup as V. Changed that to X and I am having an enclosure printed for the Navio and Pi. Will then leave the peace of foam over the baro sensor and do an autotune test this weekend and see how it goes.
i would try stabilize only first, then althold and if the “bounces” still do not come PosHold.
with stabilize alone might be a bit trick, but this way you also learn how to fly it without additional sensors
its always good to get a copter under control without the aid of gps an baro