Video element placement fail + media panel not working
Hello. When placing or dragging .mp4 H.264 videos to InDesign 2020 the videos do not actually import and show empty (see the picture), video image is not visible in the program neither after export in pdf. Actually, the same videos which were imported before and all was ok now not possible to import.

Additionally, some of already imported videos after export to interactive pdf and after enabling content play with Flash player just show gray box instead of the video.

Also, Intercative - Media panel does not work. It is either ot appearing at all, either appering once and then not anymore. If the Media panel button is even visible in the interface it's not opening anyway. What's the issue? Please help.

