OCCT issue

[TheGlenlivet]

I just finished a customer loop for a threadripper 1950x build and have been testing things to verify it is working ok with some stock clock stress testing.  P95 small fft has been fine for hours, Boinc and Folding @ home tasks are good too.  When I try and run OCCT however, it errors.

It spits out a bunch of charts with different measurements of temp, voltage and usage, but nothing looks off.  I also don't see any error codes or information on why it failed.  It is version 4.5.1.

Temps max out at 50C and I tried memory at stock 2133 and XMP 3600 and it errors both ways.  The error occurs almost immediately after starting the test.  The longest it's gone is about 90 seconds.

Any ideas?  Is OCCT still a thing?  I noticed it hasn't been updated since 2017.

Thanks!