Re: [CURRENT ISSUE 64-bit] red flashing game window

I am pretty sure the red flashing screen issue has to do with the number of objects that need to be displayed at one time.  This is why on large lots with a lot of objects, the problem only occurs when you zoom out or increase the number of viewable floors on the buildings (go up a few floors), which causes more objects to have to be rendered. 

So the solution I have found is to go to options>graphics and check the "enable object hiding" box.   This should fix the problem even if you have maxed out graphics settings.