lost treasure and 8.1 bug

Hey guys, so I'm a huge sucker for in game events so I got the lost treasure dlc and booted the game up recently

I've played a few games now, and thought I could share a few bugs I've found.

1. Ships with the same unique component can be built several times by just clicking the 'repeat' build button, while the ship icon on the left is grayed out and says only 1 can be built. If I cancel the repeat or I've upgraded the ship, I can still get around the limit by moving all the ships around and building something irrelevant for a turn. The later isn't always reproducible, but the former is. 

2. Are the yor bugged? I play on small godlike with max opponents, and they just wreck the other ai's easily 3 out of 4 games; they have 200 attack 200 def ships versus a paltry 40 attack or so. It could be they just got the right anomalies though, this was just an observation.

3. The game crashes hard when calculating the odds of success. To be fair, it only happens when I'm trying to figure out which carrier fleet will win in the end game (something like over 200 ships involved), but it has gotten so bad I couldn't finish my last 2 game. My computer isn't brand new though, so it could be a performance issue on my end.

Speaking of carriers, do the fighters only equip one of each weapon? And defend whatever is most appropriate for each fight? They've changed so much since launch that I couldn't find any recent/relevant information on them.

Thanks!