Assert in Monster Battle Arena when loading world: mLoaded textures.find(resourceLocation)

Partner Rank: 3

Verification builds: 1.13.0.10 Minecraft - Release_2983494

Summary: Assert in Monster Battle Arena when loading world: Condition is false: mLoaded textures.find(resourceLocation) == mLoadedTextures.end()

Impact: Asserts are bad, no apparent impact on the functionality of the map though I hear Content Review is now blocking for asserts, even though they're outside of our control which is a HUGE problem. This also impacts Mutant Battle Arena, though it happens during gameplay, not on load.

Repro Steps:

1. Open the world Monster Battle Arena from the store.
2. note the assert

Observed Results: This assert but no apparent issues as a result of it. Everything seems to be functioning correctly.

 

Expected Results: Not an assert

Screenshots/Videos attached: 

Regression builds: 1.13.0.9