VR Post Process only works in left eye

Hi there, I’ve gone through pretty much any thread I can find about issues like this but non of the solutions are working.

I’m using UE5.4.3

It worked in 5.3 I believe but I’ve done too much work in the new version to go back now (running out of time)

Basically I have this hatching shader in my post process volume, every other shader works fine such as the outline shader and the scene colour shader. It’s just the hatching one since it relies on shadows to be created. It’s sort of faked:

Based on a really cool youtubers tutorial.

Anyway it used to work but now it doesn’t.

I’ve tried disabling instanced stereo pass in the VR project settings but it doesn’t make a difference.

I’ve tried changing over from Virutal Shadow maps to Shadow Maps and that just broke my dynamic light and didn’t fix the shader.

This is specifically for PC VR so no mobile involved.

Please can someone help me with this I’m over 30 hours in and I’m exhausted