Getting swirly after some attacks instead of seeing what resources I received. That is a sign something is wrong server side. I have restarted the device after these attacks. Consistently when this happens I get nothing.
I am fine not getting resources because of protection, they used it or dumped it but not so peachy keen when it is because the game is not running as it should.
I had the same issue, attack summary showing nothing, no rss received, but a few minutes later it turned up. without doing anything just POOF!, i got 216k wood.