Hi Hoopster
Thank you for getting back to me.
I think I have found the culprit, which turns out to be the plex docker. I'm not sure what happend but it looks like because there was two tv shows and two movies listed in the config (one of each was empty) it throw a wobbly. A update must have updated the config and added additional fields, not really sure as I have not touched it, except for updates in a long time.
That's interesting about the wsd option as I have never noticed that before, I will take a look at it.
I will keep an eye on unraid and see what happens over the next week or so, but i'm hopeful (maybe foolish) that this has resolved the issue.
Thanks again.