By my side (3.3.10 too) no pdf problem under WINDOWS but sometimes impossible to create more than one pdf under LINUX... I need more time in order to reproduce the issue systematically.
I noticed the update yesterday contained a printing fix. Unfortunately it didn't fix my problem. Maybe the fix was for the Windows issue you linked to.
That's very interesting. I sometimes get the impression that there is some sort of message window there when I shut the computer down hours later. I'll try to keep my eye open for that.