On turn 153, map size Large, the game will no longer allow me to take any action.  I cannot move fleets, progress the turn, or even save the game.  The UI is still functional, it's not frozen or anything and still plays sound effects, I just can't take any action and clicking buttons does nothing.  I can access the ui menus still.

I have tried reloading auto saves to 1, 2, 3 turns back and the game still becomes unplayable at turn 153.  I am a huge fan of this game and all of Amplitude's work, but I can't lie... it's sort of crushing to have a game this far a long become unuseable.  Never had this issue in before.

This is on the latest stable version of the game.  I have only Vaulter DLC installed.

AutoSave 191.sav

Edit: I have tried uploading the diagnostic file but it keeps failing.

AutoSave 1173.sav

AutoSave 1169.sav

output_log.txt

Diagnostics - 2019'10'27 @1255'37''.7z

same issue - reproducible from the latest save, have included an earlier save in case it's useful. Is there any suggested workaround (going back to earlier autosaves did not work for me)