I have been using this scene before last year, at that time it was not stuck, after connecting to the camera, the picture will not freeze in the bulletin board, but now after connecting the camera, the picture of the bulletin board will be stuck, I see the GPU is not fully loaded, sometimes I open it the next day and re-test it will not freeze, I don't understand what the specific reason is? Is it because of my camera or my scene? But I didn't freeze at the beginning and I haven't modified my scene after that, I need a solution thank you, please help me