He ya !
I wanted to remind you about preview boxes that are not showing correctly, rendering issues(flicker/jitter) and while i am at it i might as well give you another one :
It seems that if sprites are rotated inside initial texture created by texturepacker (for space optimazation) then flipbook collisions keep that rotated collision box. That is not case if you preview sprite by it self.
EDIT: I figured out a temporary solution for problem. I f i property matrix all of them as custom then everything works. If i revert it back to tight bounding box then problem returns.
I was able to reproduce , although it looks like collision is wrong on sprite instances too, not just in flipbook, so it’s probably not flipbook specific. I’ll have a look.
Cheers,