When I run MovieSceneCapture in the editor, everything is fine.
void FFrameGrabber::OnFrameReady(int32 BufferIndex, FColor* ColorBuffer, int32 Width, int32 Height) gets a normal ColorBuffer, but if I try to run MovieSceneCapture in StandaloneGameMode ColorBuffer always has 255 alpha channel, and I don’t know where to find a solution. This problem didn’t exist in version 5.3.2, it only appeared in version 5.4. The 5.4.3 fix couldn’t help me. So if anyone knows how to solve this problem? I would really appreciate it.