XF 1.5 google showing wrong creation date of a thread

[audiokid]

I've just noticed google showing a wrong creation date of one of our newly created threads. How could they get this wrong?
example below.

New thread.
http://recording.org/threads/warm-audio-wa87.59690/

Google search

 

[Mike]

I can't say I see any clear indication of where (or why) they've picked up that date.

 

[audiokid]

Weird eh, never seen that before. I'm looking into how they are doing Structure Data and they must be indexing my forum dates wrong.

 

[Mouth]

Looks OK for me.

 

[audiokid]

Wow, that was fast. I logged into webmaster tools, did a structure data update two hours ago.