Hi, I get this in my logs whenever I open the advancements screen:

https://pastebin.com/sKeN0ekD

I cannot gain any advancements except for ones like being in a biome, having an object in your inventory and ONLY on world load. After that, no advancement can be gained.

Removing Better Advancements fixes this. What could be causing this issue? I changed nothing about better advancements or mowzies (the mod thats causing the error, but I assume theres more because of "...and 38 more" at the bottom.

same no clue why tho

@Natedogwoooof the culprit was Pneumaticraft in 1.12; if you loaded a chunk with some Pneumaticraft machines, all advancements stopped working. Dev confirmed it won't be fixed

Parsing error is in advancement mowziesmobs:steal_ice_crystal, might be some crossmod issue. However, I don't really support 1.12 anymore.

Actually, you can close this, Better Advancements wasn't causing the issue. I can get advancements for the first 1-2 minutes after joining a world, so I thought that it was fixed.

Any idea what might be causing me not getting advancements? Even with commands?