Did anyone else with this issue have the character go from being ladder to being non-ladder?

this happens when the character file gets corrupt try popping open single player making a save and editing a few things in a hex editor youl get the same effect

no

blizzard is deleteing all imports

mm uneducated banter you dont know what they are doing but that is the reason why it happens then again i dont know your statement might be correct and in deleting them it corrupted the file somehow

corrupted = no access to mass characters while they search for the items

they are just locking characters from moving around items

they are halting access and removing

Baseless assumption considering there are level 30ish characters unable to access anything, there are many upon many others unable to access their character files. Now thats a HUGE assumption to make that all of those "chars" have imports, mine doesn't have "imports" importing is a myth thusfar and has yet to be proven.

lv 67 Diadem

Uh... you do realize LEVEL 67 = 2+ class skill AUTOMATICALLY? Its a level granted by the magic affix... not by "imports" ... I wish people would know the basics... you can even do the math yourself if you don't believe me, do 90 -25% = 67.5 ( game client automatically rounds down ) = 67 and you get the appropriate level for that affix.

lv 67 Diadem

I'm getting this on my firewall/blaze sorc as well:(