I'm not having the issue but I can probably tell you why I don't.I dont know if the Bugfix on Page 1 works with v0.36.1 so I havent tried it.
Edit: Ok, so it happend I found in the Option Menu, that I can turn off the Animations and you guessed it. Now its working. But a Report is a Report
I save and quit the game rather often. Restarting and loading the game.
why:
It appears to be an out of memory error.
python 2.7, which this game is built on, has a 2Gb memory limit.
If you watch task manager while you play you will see each time you see another girl the memory in use goes up.
One of the biggest issues with Renpy is they didn't build in an asset manager worth a shit. It appears they rely on python to clean it up.
If you want to see how bad renpy really is: open the game and task manager. Then start reloading the exact same save file over and over again. You will see your memory size keeps increasing. The reason is they don't fully clear and free all the memory from the previous game. If it was written correctly or worth a damn. Loading the same game file would result in you having exactly the same amount of memory in use.
The only exception to that should be if the language / compiler has a bug that causes a memory leak. You can tell that isn't an issue with python when it is used correctly because other programs using the same version do not have that issue.
You could blame it on Renpy or the developer of lab rats.
Either way to avoid this issue, saving and shutting the game down fully and reloading is advise able and pay attention to the memory usage.
Also what you have opened / running can effect it even though it is supposed to be in its own memory space.