run montage happen Abnormal Phenomenon

[wmj-cloud]

When I customize a slot to play the montage, it can play normally. However, after the playback is completed, the system is not running properly, and there are also abnormalities in the turn/rotation in place and character orientation. When I perform a roll, it returns to normal

This is a curve without playing montage

This is a curve with playing montage

It looks like there are no curves or something has been changed
Then the rotation and motion mode of the camera showed strange phenomena, making it impossible to aim and causing problems with the character's turn

This is the blueprint I modified