System Information

• OS: Windows 10
• Blender version: 2.81
• Add-on version: 6.2.0

Expected behavior
Smooth or pack UVs, use magicUV functions.

Description about the bug
When using Magic UV smooth, straighten, or pack it has a traceback error.

Screenshots/Files [Optional]

Additional comments [Optional]
Perhaps an issue with 2.81?