ERROR: Sorry, an unexpected error has occurred

Arnissan

Error log in attachments. I was trying to select a bone that's attached to a skin via the new feature.

Spine version: Latest 3.8 beta.

Also crashes when I try to remove the bone from the skin.

Added error log (spine2) when I try to remove the bone from the skin

Nate

We've reproduced the problem, thanks. We'll try to get 3.8.13-beta up with a fix very soon! Also thanks for trying out the beta. The new skin bone and constraints feature is super cool. 8)

BTW, there's some nice settings for skin bones and constraints here, which are easy to miss:
Loading Image

3.8.13-beta is up! Please let us know if you run into any other problems.

Arnissan

It is now indeed fixed. Thank you for the quick update.