Weird Bug in Red Ribbon HQ's Ruins with character

So, I am at what seems to be a flying state, this happened when I logged in. I can't move nor cast any skills. I can't go back to popo stone either. I can't do anything at all. It just stays there. I've re-logged and tried different channels but nothing happened.

Can you please fix it? And, of course, see why this happened

Ok, so I found the @unstack solution in the Global Upgrade Thread... It worked.

But that is only a solution for the problem, it would be nice if we could get a permanent fix for that.

Anyways, for those of you facing similar issues, try typing @unstack in the chat.