Wonders not producing GPP (and they're not obsolete)

[neural_jam]

I'm not sure if this is a bug or if I've done something wrong somehow, but my wonders in my capital (the only city producing GPP currently) seem to have stopped producing GPP, and only one has been rendered obsolete, one of them in fact (Sistine Chapel) can't go obsolete... has anyone else come across this?

Thanks!

P.S. Hi, I'm new to the forum

 

[JujuLautre]

Welcome to the forum

FYI