Try adding this to DefaultEngine.ini if you are still having problems.
Setting via console vars may not work properly.
[/Script/Engine.RendererSettings]
r.SceneRenderTargetResizeMethod=2
r.SceneRenderTargetResizeMethodForceOverride=True
Try adding this to DefaultEngine.ini if you are still having problems.
Setting via console vars may not work properly.
[/Script/Engine.RendererSettings]
r.SceneRenderTargetResizeMethod=2
r.SceneRenderTargetResizeMethodForceOverride=True