Describe the bug
Install the latest fancymenu and modern UI modules at the same time, and click the new drawing board on the main interface, and it will collapse

4. See error

Expected behavior
crash-2022-11-01_13.22.14-client.txt

Basic Informations (please complete the following information):

• OS: win11
• FancyMenu Version 2.12.6-1
• Forge/Fabric Version 31.2.29
• Minecraft Version 1.16.5
• Active Mods modernUI fancymunu

ModernUI probably makes lots of changes to Minecraft's UI, so there's probably no way to add support for it. I will close this for now, sorry.