OK, I'm still having trouble with the 6.8.0 update.
To start off, I just updated the OS and I started getting this error:
I recognized the "/dev/dvd" and it reminded me to update UnraidDVB. I did what I did in June and ran the download.sh file after I updated it for 6.8.0. It' downloaded the files, I copied them to flash and I rebooted. I still have the same error, but I did confirm that in the background of the UnraidDVB page it's showing the proper 6.8.0 behind the never ending splash screen.
Side Note: I think the error tied to my never ending splash screen is this:
Not sure if either of those messages help understand my issue.
For now I'm going to try to roll back to 6.7.2
Edit: I think I may have done something wrong, or maybe something right. I overwrote the flash with files I backed up earlier and then rolled back to 6.7.2, but after the boot my system thinks it's on 6.8.0, and plex seems to be working.... Still have never ending splash, but I can live with that.