Can't get shaders + DH on forge 1.20.1 to work

I've tried DH 2.1 2.2 and 2.3 with oculus 1.6.15a annd 1.7. 1.7 crashes, 1.6.15a does weird stuff with shaders.

Mods:
-Embeddium 0.3.31
-Forge: 47.2.0 (47.3.0 doesn't work)
-many other which aren't listed as incompatible, this is a larger modpack.

I've only tried in Singleplayer.

Can anyonne help me with the correct versions, cuz it seems like nothing works with nothing.
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