I recently received a fatal error while adding Miroslav Philharmonik 2 to a new project (image 1). So, after the program closed, I reopened it, started a another new project, and this time, tried to add an instance of Kontakt. The instrument opened successfully. I added a library and as soon as I touched a key on my controller (Nektar LX88) I received another fatal error (image 2).
So, out of curiosity, I opened device manager to look at my USB drivers and noticed two USB controllers listed under Other Devices that had the yellow alert icons next to them (image 3). I opened each one and took screenshots of their properties (images 4 and 5). Not sure if they are related to the crash but it seemed it might be a USB driver issue.