Recorded video black screen录制出来的视频闪屏以及黑屏

[uginet]

In version 9.0.4, when I clicked on the camera, the software flashed back immediately.
then
When I record the screen, in the minimized state, any video recorded will have a black screen and a flash screen.
And when I don't minimize the software so that it can record the screen and preview at the same time, there will be no black screen or flashing screen.