I'm getting a weird alpha bug in version 3.6.37 of the editor. The alpha value of keyframed slots keeps resetting to 254 when loading the file.
Search your .json files for "fffffffe" to see if you are affected.
STR:
- Create new skeleton
- Add an image
- Insert a keyframe with color 255, 255, 255, 255
- Save file
- Reload file
- Open keyframe and see that the color has changed to 255, 255, 255, 254