no trickplay on DVR recordings

[Mushie]

My situtaiton is a bit different. Trickplay generates images for about the 1st minute of a recording, then it fails to generate for the remainder of the show. If I remove the recording completely from the scanned recordings folder, scan the library, copy the recording back to the original folder, and rescan, then trickplay files are generated for the entire recording.

I am on Windows 10 running v10.9.8. This was the same issue with older versions as well.

Thanks!