Not wanting to thread jack, but I too have been having issues since upgrading to 6.3.2. I found the Fix Common Problems plugin and have it running in Troubleshooting mode. unRAID died again during the night (happening every other night between 3-5 am) and shares are dead, webui unresponsive (sometimes is responsive but shares are gone and only come back after a full reboot), ssh is down. Will be combing through the logs sometime this evening or tomorrow, but wanted to let you know that you are not alone, rippernz.
I had no issues on 6.2.x builds, and I don't recall any issues on 6.3.0 (possibly none with 6.3.1), but every second night (early morning) since 6.3.2, my server goes tits up. Wanted to share my experience in case our problems are related. I have NOT opened my own thread yet, still gathering information, but can if needed.