yugutou I have checked your Spine project and confirmed that I can reproduce the problem. I guess it is affected by the following items that were fixed in 4.2.60-beta:
Don't wrap rotation and shear Y for a transform constraint when local is checked and relative is not.
The problem is caused by a transform constraint named body_1, which has just been configured with a Rotation offset of 180, Local checked and Relative unchecked, so I think this might be the case. In fact, I was able to reproduce this problem in 4.2.00, so I don't think this is a bug caused by a fix made in a recent patch version, but rather a result of fixing an issue that existed for a long time.
This problem can be fixed by setting the rotation offset from 180 to -180:
We apologize for the inconvenience of having to manually fix this, but it should be a very rare occurrence.
