all the screenshots are cut off so theyre basically pointless, all i can tell is you think img files are seen as video files (which is an OS decision), and i have no idea how youre relating this back to sonarr?
try and limit your description to the issue with sonarr
those images dont help, they dont show anything (if you think they do then add comments or an explanation to each one so we know what were looking at) - because you havent described your issue with sonarr
logs are better, they tell us what sonarr did
and yes, if its a completely different issue, create a new thread for it