Studio 3.1.2.32 rendering failes at random places

Chusha

Microsoft .net Framework 4

Two days ago one scene I was working with suddenly stopped rendering. Nothing new was added to the scene other than changing the position of a few models. No textures were changed, and the lighting setup from the Garden Pavilion was used in several other scenes with no issues.

Now after two days of head bashing I think I may have narrowed down a problem to a recent install of Microsoft .net Framework 4 installed by Steam and Microsoft Train Simulator 2012. Could Microsoft Train Simulator 2012's install of the .net Framework 4 have damaged or replaced some of the files DAZ Studio 3.1.2.32 relies on?

Update:

It was the .net Framework 4 installed by Microsoft Train Simulator 2012 that caused DAZ Studio to suddenly start failing at random places while rendering.