Currently using Channels DVR version 2020.03.07.0019.
I mainly use Channels DVR to record and then edit/archive the recordings with VideoReDo, but a few of the recordings I'll watch in the web UI (where I see the problem) and then delete them.
When watching the recordings in the web UI, it remuxes as expected and then says something like transcoder ready... in the web player.
At that point the recording stops playing with a spinning circle and skipping forward/back or selecting a point in the timeline does nothing.
My workaround is to first Regenerate Video Index for the recording before using the web UI to watch it, which works every time.
Appears there is an issue with the index created during the recording?