There was an issue submitted here: Unreal Engine Issues and Bug Tracker (UE-59090)
The replication is still the same:
Basically, if you have a SceneCapture2D capturing to a render target, it will reallocate the scene render targets constantly between the scenecapturer resolution and your actual HMD resolution. This tanks the frame rate
Note: this doesn’t happen in editor only in builds
Is there a reason why this has been changed to a non-issue?
If so what is the reason or how are we able to resolve it?
Currently, I’m working on version 4.23 build from the release branch from github.