Is there an existing issue for this?

• I have searched the existing issues

Are you using the latest MineColonies Version?

• I am running the latest alpha version of MineColonies for my Minecraft version.

Did you check on the Wiki? or ask on Discord?

• I checked the MineColonies Wiki and made sure my issue is not covered there. Or I was sent from discord to open an issue here.

What were you playing at the time? Were you able to reproduce it in both settings?

• Single Player
• Multi Player

Minecraft Version

1.20.1

MineColonies Version

1.20.1-1.1.247-BETA

Structurize Version

1.20.1-1.0.653-BETA

Related Mods and their Versions

1. blockui-1.20.1-0.0.98-ALPHA
2. domum_ornamentum-1.20-1.0.139-BETA-universal

Current Behavior

Game crashes

Expected Behavior

Game does not crash

Reproduction Steps

1. Open UI of sawmill
2. Go to Custom Recipes
3. Go to Teach Recipe
4. Go to Requests
5. Click Select

Logs

https://gist.github.com/janisl/a1ba7a9df2a75895fc30f8fb8731f76f

Anything else?

• Add a thumbs-up to the bug report if you are also affected. This helps the bug report become more visible to the team and doesn't clutter the comments.
• Add a comment if you have any insights or background information that isn't already part of the conversation.

Duplicate of #9492