So think ive fixed my issue.
Seemed to crash when ever i did a scan of the Podcasts, I managed to whittle it down to a single podcast that was causing the issue (Stuff you Missed in History Class) - my assumption is that it may have something to do with the fact there were over 2k downloaded episodes in there...
Just jumping in to say im having the same issue, the docker seems to be staying alive until it tries to download something as the last log is always something like:
[2023-07-25 12:00:06] INFO: [PodcastManager] Found 1 new episodes for podcast "Stuff You Missed in History Class" - starting download
Held off trying the above fixes for now incase there are any further updates due in...