Not sure if anyone has seen this and i tried to search but couldnt find anything similar. It happens when u own a ship with a beam weapon and try to attack enemies with said ship. It immediately makes the turn button disappear and you cant click on anything else effectively freezing the game. U can scroll around and sometimes look at planets but thats about it. Reloading the game without completely exiting does nothing.
Also, when you try to colonize a planet that the AI wants and u get there the same turn but u land first, they try to land as well and then the game locks up.