Saved\Logs directory of the packaged game. Also just as a note to one of ur above comments. 32-bit builds are not supported by my branch and most likely never will be (not unless I can get 32-bit binaries for all GameWorks techs).
I have seen your on the NVIDIA Github issues page, and infact had made a note to myself to take a look and see if I experience the same. So I do plan to take a look.