when rendering XAVC-S UHD(p30) footage to UHD(p30) using the Intel HEVC encoder should not be done with an existing, older render template. This may crash the system.
Please make a slight change. For example use the 30-40Mbps template, set the upper limit to 42Mbps and save this to one with a new name. Thereby the template is newly written by Vp15 B311 and rendering with this template should not cause any problem.
I think this problem is not really related to the footage. But this is, what I tested.
Rendering to Intel HEVC 10bit still does not work on i7-8700k.