Mine and my husband's both did the same thing - Bartender disappeared and was no longer installed. We just went back and reinstalled it. It put our settings back. No idea why it was uninstalled with LUI's update but reinstalling Bartender fixed it.
Yeah I eventually tried that and it worked out.
I was afraid to do that because I didn't want to lose all of my settings.
But it all worked out in the end
Hey with LUIs built in raid frame is there a way to make it show tanks and healers etc?