I couldn't find it in the changelog so i even though i'm on a older version then the most recent i decided to report this.

Minecolonies version

minecolonies-universal-1.12.2-0.8.8208

Expected behavior

building Spruce medieval warehouse level 5 with 1 mossy brick.

Actual behaviour

Trying to build Spruce Medieval warehouse level 5 with 1 monster egg mossy brick

Steps to reproduce the problem

1. Build medieval spruce warehouse 1 t/m 4
2. Try to upgrade to warehouse level 5
3. Getting stuck on monster egg part.
4. Profit