This issue has indeed been solved, and it happened just as I thought. I put the download in my Documents folder. When the download happened, now I can see the thumbnail!:)
Similar to "Missing album art," but has to do with video
I have used RealPlayer for many years and have collected quite a few items in my library. The two most recent downloads (Dec. 2019 and today) are of the same video - "Bethany Barefoot - Business Starts at IUP."
Unlike the other videos, I've noticed that there is no thumbnail picture of that video in the library. Stranger still, when I followed the "Download This Video" prompt for the second download, a thumbnail did display.
After investigating, I found that the address of the Bethany Barefoot videos is different from the others:
*Bethany Barefoot: C:\Users\desmo\Videos\RealTimes\RealDownloader\Bethany Barefoot Business Starts at IUP.mp4
*All others: Either C:\Users\desmo\Videos\(Name of video) or C:\Users\desmo\Documents\(Name of video)
I wonder if this change has anything to do with why the thumbnail is missing.
In the meantime, I will revisit the missing album art page and see what I can do with it. I may use Snipping Tool or something like that.
Just a little detail that's bothering me. I can play the video just fine.