Hi I noticed considerable latency in camera translation when using the Vive both in Pie and in pure game. Tested this in 4.11 and 4.12 on bot the regular and beta branch of SteamVR.
This latency seems to persist for all tick groups for the camera (component). I am using the SteamVR overlay just to visualise it as the controllers are just resting on a surface. The problem is the latency, not the discrepancy per se, that is just a side effect.
The issue is not there in the VR Editor in 4.12 and as I discovered later in some specific games like The Brookhaven Experiment either. But most UE demos seem to have it.
The issue seems not to be present on the Rift.
Any advice on tracking down the cause would be much appreciated!
This Answerhub post seems to be dealign with the same issue: https://answers.unrealengine.com/questions/422372/huge-latency-with-htc-vive-on-412-preview.html
Edit Upon further investigation I narrowed it down to having an active camera component in the pawn. If i disable it the latency vanishes.