Multi-mod rendering corruption

Hey there, I'm currently investigating some issues of 3d Skin layers in combination with Iris shaders, maybe one of the devs has an idea of whats going on. When using BSL with "Advanced Materials" enabled, ETF with a player pack like Fresh Moves/Better Animations and any visible 3d skin layers on the player, then it has some corrupted half transparent rendering and incorrect uvs. Changing any part of this like using a different shader/turning Advanced Materials off/removing the resource pack or disabling all 3d layers fixes it. Also investigating another issue where some pixels just render black, that I've seen so far only with Complementary, so I'll ask there first. Apparently there is some black flickering issue with Bliss shaders, but just saw that here. https://discord.com/channels/774352792659820594/1341991145965617334/1342595444311720069 I replicated the BSL and Complementary issues with a minimal install, just latest EMF/ETF/Iris/Sodium/3d skin layers/BSL/Complementary/Better Animations and Fresh Moves.