Hi! I was making an animation with a rig that I’d made. I imported it in a separate file, but when I moved a bone, they’d become unlinked. I reloaded the project and now this error message comes up and I can’t open the file.
If there’s anyone that can help with this problem, let me know. 
Hello,
It looks like this might be related to bug #1393. The bug happens when you export a value from the imported layers within a parent file and then try to reopen it. Unfortunately I’m not aware of any ways to recover your data currently. All I can say is that the devs have been looking into it recently.
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