I don't know where you want these bug reports, here on the support ticket system? I always found the ticket easier to use since we can directly upload the files...
This is a stuck game. Large galaxy, 3 clusters, lots of custom races including my own. Late game grinding.
I can reproduce it, so far.
Upon changing turn, I play my moves and the game gets stuck... somewhere. It's during an AI move, there's 4 races left to conquer.
I don't do anything special, just move my fleets around (not the same fleets the second time), so it's really something the AI does that result in this bug.
The first time, I accepted the peace offer from the race named E.O., so I suffered no invasion and the game got stuck with fleet movement notification. The second time, I chose to pursue war and was invaded, maybe by this race, maybe another one, but I'm stuck on the invasion notification.
Stuck save game
Debug info