Minecraft v1.20.1
Lootr v0.7.34.85

Loot chests that are locked using vanilla Minecraft's locked chest feature is not saved when Lootr replaces the chest, meaning the chest does not need a key to open it. This is a feature that I am using for the structure in my Warp Pipes mod.

https://minecraft.wiki/w/Chest#Block_data

Looking into this, it appears that two areas are lacking:

• The lock code, as you said, is not copied over when the chest is replaced.
• Additionally, the menu creation that would normally check the lock happens in a completely different location that Lootr currently bypasses.

I'm not sure where best to re-inject the lock check, I'll keep digging through the code.

Sounds good, thanks!

I've pushed a build to CurseForge which should support this functionality now.

I've got some code that does fix this, but I'm not 100% happy about where it is... unfortunately, putting it anywhere else requires a bit of hardcoding and adjusting of my standard interface for Lootr block entities. I'll play around with it some more and get back to you.

Thanks!