Good day.

I am having problems visualizing the video preview in the program on my computer. For some reason, the program makes the audio wave correctly and everything else works fine. The only problem is that it does not show the video preview and subtitle preview on the video screen, only the black space.

When I place F4 to hide and show again the video section, it doesn't show anything except the frame.

Does anyone know how this happens or a solution for this issue? Thank you in advance.