Went to post original, Oops! notification came in that there were new posts since this was loaded (#6124). Tried again and told me to wait 30 seconds to perform the action (like to quick to post.)
Went out of thread and back in, and it happened again.
View attachment 127795
This is a known bug that xenforo is denying.
If you look at the time of the post above it, it says "in a moment" - which means it was posted in the future.
So the system thinks you are screwing with it by posting before the last post. Which is funny, cause it knows it is in the future.
I can not recreate it on demand. the worst i've seen is "in 3 minutes" -
Refreshing until the previous post says "a moment ago" and your 30 second quarantine runs out, will get you in.
Still working it - but on the back burner.