Title: Stuck turns
Body
Version: 0.65 alpha
Details: Stuck turns midway through game.
How to Reproduce: Seems to be more prevalent when transports are attempting to invade enemy planets. Also noticing an extreme slowdown in mouse speed, "lag" when clicking on anything (planets, governors pages, etc.).
Files: https://drive.google.com/file/d/1p85woJbH32GeDedxyZW6NaXsYy0fRuf-/view?usp=sharing
What's happening is that i'm about mid-game and using transport fleets to attack enemies. The turns are sticking without any ability to advance the turn. When it happens, the gameplay speed slows way down like there's some sort of lag. Mouse and Zoom functions crawl, I can't double click anything properly, extreme lag when selecting ministers on the minister screen, lag on planet screens, etc.. Then things just freeze and sit there. My only solve is to save the game, exit the game completely and then re-load the game "cold boot" style.
Additional info:
PC: MSI gaming laptop, Intel(R) Core(TM) i7-10750H CPU @ 2.60GHz . 32 gig of ram, 64 bit processing.
Video: Nvidia GeForce RTX 2070 Super.
Hope this helps. Reposting here in the bug reports forum.
