About an attached video

Hello! Here is a quick question. I own Dorico 3.5 and for the last month, I have been working on a score for a short movie. The problem is that today Dorico is not showing me the video. When I press F4, I see a blank tab on my toolbar, but nothing else on the screen. Do you have any idea about what could be going wrong with my laptop? Thank you very much!

Is there any chance the video window has been moved off screen?

Thank you for the idea! but I checked it and it seems like the window is not responding. this is a screenshot from my toolbar expansion (I don’t know the actual term hah)

You might nevertheless try to move the window back onto your main display. Try following Ulf’s procedure as described here: