Minecraft version(s)

1.16.5

Minecraft version details

No response

Mod loader

Fabric

Mod loader version

Fabric 0.12.5

Fabric API version

Fabric API 0.42.0

In what environment did the problem occur?

My singleplayer world

What went wrong? (Crash logs don't go here)

All of the blocks were transparent and the chests were just completeley broken.

Full list of installed mods

Fabric API 0.42.0, Pehkui 2.5.3, Immersive Portals 0.101

Did the problem cause the game to crash?

No.

Full crash report contents (if you experienced a crash)

about to add a screenshot
Edit: added screenshots

Note: This happened on an old, windows 7 32bit pc