I was trying the 6.12rc's but was having stability issues so went back to 6.11.5.  Clicking on any menu's, apps page, or dockers page is very sluggish. However everything seems to be functioning correctly.  Fix Common Problems hasn't pointed to anything. I did remove and reinstall all the dockers. Some initially would have an execution error but all of that has been resolved. I know there's a common step I'm missing here. Any thoughts?

Same, really kicking myself in the ass for trying to move my perfectly working server to RC5 because I was so stoked about ZFS!  haha, it was running perfectly until then...Rolled it back, and it's been nothing but highly unstable.  

 

Tried restoring from the backup i made before my upgrade & reboot to a new flash drive, and now I'm stuck with a GUID error.   Good luck, will be watching this to see if anyone has any solutions.  Since my dockers and VMs are completely broken, I'm even down to creating clean install and just importing my ZFS pools if that works.  I have backups of my docker templates, so probably will be my next step if nothing comes of this thread.