So today I started having some permissions issues (or at lest this is when I noticed them).
I went to create a new folder on my pool drive and got an permission denied error. I thought..hmm....I am admin on this account, this can't be good. Looked at the Windows 10 Pro SECURITY settings on the folder and files and they seemed correct. I was stumped. Man, what changed? I had no idea other than maybe something was up with DrivePool. I could create folders on other drives without issue. Noticed that the icon for DrivePool was displaying in the system tray and opened it to find that the license key was no longer there, it was asking me to transfer the license. What? Then I remember, yesterday I did a BIOS upgrade. The transfer of the license worked, and all started working again.
I had no idea that a BIOS update could cause this, but that is the only correlation i could come up with that change from when I last knew it worked to today.
So, just FYI all.