Thank you Nate! That was it, I just sent the project file to the contact email.

Pharan wrote

If you want, you can share the json here or send it to contact@esotericsoftware.com so we can take a close look at what's being exported incorrectly.

Thank you Pharan, here's the exported json:

From Spine, I have exported an animation as a Json file including the atlas so that I can import it into Unity. Usually this works fine, however for a particular animation it seems to have exported an invalid file, as when I try to reimport it into Spine it states that the it is invalid. I have inspected the file itself and haven't found any noticeable errors. Is there any known cause for this problem?

Thanks!

Hello,
I wanted to know if there's any way of exporting sprites where FFD has been applied separately from every other sprite into the atlas so that we can use trimming on the second set of pieces without altering the uv coordinates for the first set.

Initially our animator used after effects retrieving images directly from a psd, animation which we imported into spine through a script. The problem is that every piece contains the whole whitespace. Thus, every transformation applied is relative to the whole canvas. Whitestripping during export works fine as long as no mesh has been used, so it would be great if we could used a trimmed atlas for every non ffd piece.

Thanks!