I've run across a strange... well, it's not an error but still mildly annoying. After updating to the latest Forge build today, it started spamming the client - and only the client - logfile while connected to my external server (which, yes, also runs the latest build, I've checked twice now) with the following line each game tick:
I'm connected just fine to the server (infact I am right now) and can play normally, but this line keeps getting written into the logfile over and over and over. As far as I understand, Forge is trying to send packets to a server which it thinks isn't there, yet somehow still manages to work with?