They are non-descript Access Violations, which can occur for a number of reasons and identifying the cause usually requires a process of elimination. Unfortunately, we’re not able to determine the exact caused based on crash data alone.
I’m at a bit of a loss unfortunately, as you’ve exhausted all of our ‘go to’ solutions. I’m very sorry I’ve not been able to help you more 
please let me know if you would like to proceed with a refund.