Voice-of-Shadow Thank you very much for reporting this issue! I have confirmed that I can reproduce the problem.
This issue appears to have started occurring in version 4.3.19-beta. Since this version includes numerous fixes related to bone transforms, it seems likely that this issue arose during those fixes.
I have created an issue to address this problem here: EsotericSoftware/spine-editor960
We apologize for the inconvenience, and we kindly ask for your patience while we work to resolve this issue.
