ElvUI Profiles Vanished. Asks for installation. No Update.

[Steampunk]

I spent weeks tweaking my ElvUI profile and today, I was playing no problem.

I logged out and back in a few hours later... and all my ElvUI profiles are gone from options. It's asking me to go through installation again on every character!

I've done no update or anything.

What the heck happened? Super nervous about this, as ElvUI has become a "must-have" for me, since the normal UI is hard to read for me, due to a bad eye. Adjusting the windows and frames has become essential to my playtime. :\

[Deleted]

Might have happened due to a blue screen.

Right-click your interface and WTF folders, press "Restore to previous versions" and restore them to when they were working.
That fixed it for my when I had that exact problem.