Reallocating scene render target constantly. Why?

I have this trouble on ue 4.24 with SteamVR and SceneCaptureComponent2D to use as camera for spectator texture. When I run project under editor - everything ok, but when I run build package - every frame I see this:

[2020.08.03-06.55.45:814][ 28]LogRenderer: Reallocating scene render targets to support 3648x2028 Format 10 NumSamples 1 (Frame:29).
[2020.08.03-06.55.45:934][ 29]LogRenderer: Reallocating scene render targets to support 1920x1080 Format 10 NumSamples 1 (Frame:30).

I made empty scene with only one pawn (relative SceneCaptureComponent2D inside), but it’s not helps. It’s looks like steamVR make own render target, but I can’t find anything about it.

Does anybody has any idea?