Logged off with all my best armor on (was before crash) then I logged back on couple of hours later and all my mystical gear went from +20 to +0 :((((((((((((. I was at 290 heavy armor skill :( the only non mystical item was anointed boots that went from +10 to +3 heavy armor skill :(. My shield of +40 shield went to +0 as well .
My weapons that I had in my bag did not get changed thankfully.
I have located the issue and it will be fixed next patch. Should retroactively fix all armor.
woot all my gear seems to be fixed now thanks!