Hi,
When I tried to fix some issue in my Plugin Color Flow, I recently discover that if I duplicate a master where some layer have userData:
print(type(layer.userData["CustomData"]))
return
objective-c class __NSFrozenDictionaryM
instead of
objective-c class __NSDictionaryM
How can I fix this ? Because after that I can’t modify my userData without close/re-open Glyphs.