I was prompted to update this evening to the latest version of Malwarebytes 4.2.0.82, on Win 8.1 - and I have gotten bluescreens twice since the install on a workstation that has never had a BSOD in more than 6 years. Not sure if it is directly because of Malwarebytes, but that is the only thing that has changed on the workstation.
If support is interested (which they may not be, with it being Win8), then I can look for a dump file if Windows generated one (which I figure it did). I uninstalled - I am willing to re-install MB if it would help...but I figure that if it isn't a Win10 issue, interest will be limited - so I'll leave this as a record for anyone who comes along after experiencing a BSOD on Win 8 after updating...