it is been a long time since I found this problem.
the vtol is adele,with the BZ251 and QMC5883l, it fly normal when be in Qstablize and Qlotier mode, and also normal and fine in fix wing mode. The problem is ,when it is transforming into the fix wing mode, it will change its yaw and lock into the north ,no matter which yaw it toward in the beginnig.But when the transformation is done, the plane fly well and stable.
compass and the gps work well. And I have changed many places to test the reason of this problem ,but still no help.even when I disable the compass, the problem is still there.
I check the flying data.the attyaw will be 0 when i pushed the transform button,and the ek-yaw-reset will engaged, and it will also occured when the vtol transforms back to the copter mode.
so what reason could cause this, I have ask many friends fly together and they said there they never seen this problem before.
I attach the flying data below.
Uploading: 2025-02-11 17-41-24.bin…
Uploading: 2025-06-23 18-29-02.bin…