Drone altitude unstable in position and altitude mode

Hi,
I have an issue with my drone – when flying in Altitude or Position mode, it keeps moving up and down quite a lot. It feels unstable and doesn’t follow any clear pattern (not like regular oscillations, but more like random altitude jumps).

So far I’ve tried:

  • Adjusting velocity PID and position PID parameters

  • Tuning hover thrust

  • Disabling barometer and GPS individually

Unfortunately, none of these attempts solved the problem.

Does anyone know what else could cause this or what I should check next? Any help or suggestions would be greatly appreciated.

Log: https://review.px4.io/plot_app?log=43f573a6-e175-4e5a-ad64-843b905624bc