Just a few, played multiplayer with friend and it didn't work out quite so well. When playing he kept asking if I needed help defending from blue and I had no idea what he was talking about. It seemed to have somehow split into two games at a certain point. The Ai's were doing different things when comparing our two games.  I'll get the saved games and post them up, still playing right now, so I can't. I have the files saved into a zip for people if they want to see what is going on. The link is:

http://www.megaupload.com/?d=WO4NAL6T

This also points out that the Envoy ships were just sitting at the other human players planet, but were not visable on yours. They also kept launching the little ships to the planet. To clear that up, on my screen, it looks like there are 3 Envoy ships from the computers just sitting at my friends planet launching the pods to his homeworld. While on his screen the same was happening to me.

This was all that I could find before the I lost in my game, and my friend lost in the one he is playing in. I'll keep playing what I can. But as for now... Back to entrentchment, want to get some gaming in with friends.

I did not have any mods running while playing this.

EDIT:

PS: This isn't a bug with playing multiplayer, but in Diplomacy in general, just a mod, the bailknight mod actually. When it is on, the planets are see through. So, if you want see through planets get the Entrentchment 1.41 BailKnight mod. Otherwise, just wait for the update.