[Bug] Can't end turn when using Cheats

Like many people, I've run into the infinite end turn bug where nothing happens until you reload.  It happens so frequently in my games that I've had to stop playing - literally having to reload every 2-3 turns.  That's no way to play a game!

Anyway, I finally narrowed it down a bit.  This ONLY happens, for me at least, when I use the Cheats.  As in, putting it at the end of the shortcut to activate in-game cheats.  I played a game without cheats to about turn 260 something without a single end turn bug, but as soon as I started a new game with the cheats enabled, I got the end turn bug within the first 3 turns or so.

What does enabling cheats do to the game to cause this?  Sure, the logical answer here is to just play the game without cheats, I know.  But I don't WANT to, I'd rather get this issue fixed!