I'm running 1.20.2 Fabric with Iris 1.6.10. I have the Fabulously Optimized modpack which includes Indium, Continuity, ETF. When I use an emissive ore resource pack, some but not all ores in a group will aggressively flicker. Something interesting is that all sides except for the side facing North will flicker.
What I've tried: - BSL and Complementary shaders - integrated vs labPBR - Turning off connected textures/custom block layers in Continuity - Turning off anti-aliasing