Thanks for posting those things @VitLiskutin & @BreakMaker…
It may not fix the problem for me, but there is some comfort in knowing I am not the only one still having these issues 
When I said my current solution is to turn off shadow casting for the lights, I wasn’t making a joke;
It allows you to get on and create/test levels in VR without getting a massive headache…
in the hope that an update is coming which will remove this problem before you actually need to ship your project.
The reason why I am not holding my breath for a resolution however, is that the problem in some form or another has existed from the start of UE5.0 at least. (Because its probably a lumen thing?)