Thanks for posting the additional info.
Could you please provide more context about the problematic asset:
In the video I can see two leaves on the left which are shown and hidden in a flickering manner.
Are these two flickering leaves two separate skeletons, and should both be visible at the same time (one behind the other for example)? Or is this one skeleton displaying incorrect visibility of attachments?
Are the two leaves frames in one animation, and does this problem occur with only a single animation playing? Or are you playing (overlaying) multiple animations at once, or transitioning from one animation to another?
Could you perhaps provide the problematic Spine project assets so that we can have a look at them? You can attach it to a forum posting or send them to
contact@esotericsoftware.com.