Once, yes. Back in November. It only lasted for three days but it was the same sort of thing: people coming in at random, powers being returned, non-humans gaining their original forms... the whole shebang of craziness.

[Though he doesn't remember parts of it...]

Before that though, there were a few times where suddenly entire weekends just seemed to... vanish? Like... time passed but nobody could remember what they were doing and some people even wound up in a completely different place after the skip. Places it should have taken much longer than three days to reach.