I Just Had 5 People In Party (including me)

Ok, I was farming with some dudes and suddenly one guy joined when our party was Full.

I took screenshot using printscreen button, but I did not get the right image for some reason :(
(I have no idea why)

Then, I tried to take a video using Fraps, but he left the room.

Anyways, that's first time seeing bug in D3.

Just let you know, it was approx. 6:20pm PST