Synfig version & platform:
Synfig Version: 1.3.6 (Development Snapshot)
Platform: Windows 10 Pro, 64bit
Whenever I try to use the plug-ins (like “add Skeleton (Simple)”), I receive these strange errors (please check attachments) and then Synfig crashes. A similar error and crash happens with the “Unhide all layers” plugin too. I have uninstalled and reinstalled Synfig with no change in error.