Game crashes on clicking on UI purchase elements

Game crashing to desktop with the crash report window appearing. Only seems to happen after 30+ minutes of in game time have passed. Clicking on any of the buttons that spend resources sometimes causes the crash e.g. planet items, research, commerce/defence etc upgrades. Not any button in particular it was a different one each time over 10 or so crashes.

 

Also verifying the files on steam the file "gamedata2.dat" gets reacquired. I verified the files earlier today (where it reacquired that file), then came back a few hours later and played again until it crashed, then verifying the files again reacquired the same file.