I have several mp4 files downloaded from Telegram and some appear to have been superimposed in the fashion pictured below. The ghosted image is a still frame from the previous mp4, which remains still, while the intended video plays at half speed. Any idea of what's happening and/or a fix? I tried Google et al but without knowing the issue, my searches have been unproductive.
https://ibb.co/BNZ3TwG