Same here...tried everything I can think of. Must be bug in update.
Can you provide an output log of this? If you're not sure how to do this, please check here:
Posting Output Logs
Here is what I came up with. Also, I uninstalled and reinstalled the game and this may have worked...have not had the chance to fully test out.output_log.txt
Does this continue if you turn VSync on
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