no trickplay on DVR recordings

[Marsbar]

Hi

I have a jellyfin (10.9.7) server set up on a miniPC running Debian 12 on an N100, linked to a networked HDHomeRun quad TV tuner.

I have enabled trickplay generation and it works for downloaded media, but not for the recordings. I tried finding a setting for trickplay in the Recordings library but there isn't one.

Am I being obtuse or is this just Not Possible Yet?

Thanks

Geoff