I was doing a routine update of docker containers.  The process hung for quite some time, so I eventually did a reboot through the UnRAID UI.  When it came back up all dockers were missing and after some time the UI and ssh were completely unresponsive.  I did a hard reset and everything seemed to come back OK, except the Plex docker is now gone.  I read in another thread to just reinstall the docker as all the appdata is still present.  I was able to reinstall it, and it picks up all the existing metadata, however it seems all the paths are missing as nothing will play.  I've attached the diagnostic .zip. 

Any help would be appreciated.

Thank you.

scour-diagnostics-20190429-1800.zip

I figured this out.  Not sure the original cause of the hung docker update, but reinstalling the docker didn't pick up the saved container paths.  Simply putting all the  paths back manually fixed it up.

Possibly related to

Apr 29 17:43:43 Scour kernel: BTRFS info (device loop2): bdev /dev/loop2 errs: wr 63, rd 0, flush 0, corrupt 0, gen 0

Write errors to the docker image.  Quite probably caused by 

199 UDMA_CRC_Error_Count    -O--CK   100   100   000    -    15166

Which is probably a bad / loose cable to the cache drive.