Huy137 As you can see the "auto delete system for duplicated key on start up" seem didn't work anymore ( version 4.0.22). because there 's duplicated key of "Hair010" still exist after a few time I restart Spine. I accidently created those duplicated key when I duplicate "Hair05" slot The test project file for this problem in the attachment file anyway:
Nate How did you create these duplicate timelines for the same slot? :o That should not be possible, so we'd like to fix that rather than detecting and fixing it when loading the project.
Huy137 After taking some test I realize this bug happen when I try to duplicated a hidden slot along with its keyframe. You can try to test it with this project in the attachment file here. The bug occur 100% if you duplicated the "Hair09" Slot The duplicated slot 's name 'll be "Hair011" and have many same time line
