XF 1.5 Posts out of order even after thread rebuild

[seebs]

The last two posts in a thread are appearing out of order. A post from about three hours ago is the "last" post in the thread, a post from about half an hour ago is showing before it. I've done the rebuild cache thing. No effect. Not sure what else might be at issue. Any suggestions?

EDIT: I rebuilt a couple more things and it magically changed. Maybe a browser cache or something?

 

[Paul B]

I would start with disabling all add-ons and reverting to a default style.

I vaguely recall someone else had this issue recently and it was due to an add-on.