GrungeBDcraft HD pack is crashing at 128x and 256x while PureBDcraft 128x and 256x is working on same computer

Partner Rank: 1 

Verification builds: 1.17.0 (release)

Summary: On Minecraft W10, when loading a world with GrungeBDcraft 128x or 256x resolutions, the game is crashing. PureBDcraft (which has same amount of textures) is not crashing on any resolution on same computer.

Impact: Weird unkown and inconsistent crash with GrungeBDcraft while PureBDcraft is actually working fine on any resolution on same computer (GeForce 2080 + 32 GB RAM).

Repro Steps:

1. Download GrungeBDcraft
2. Activate 128x or 256x resolution
3. Load a world
   = Game is crashing

Important note: The game is not crashing with PureBDcraft on exact same resolutions and same amount of textures on same game version and same computer.

Observed Results: Crash while loading world with GrungeBDcraft 128x or 256x

Expected Results: No crash, 128x and 256x should just work as fine as PureBDcraft (GrungeBDcraft is based on it and have the same amount of textures)

Screenshots/Videos attached: See attachment.