Not sure how to trace this one but I can't render of my projects in VP15. No matter if I select the NVENC or regular, it hangs at 37% of the rendering. I believe it is right at a Sapphire generated clip.
For me, if I disable GPU acceleration in prefs before rendering it will complete, otherwise it hangs. You can use NVENC this way. I'm on build 387 with the 1050 laptop card, latest drivers.
Why this has any effect I have no idea. I did report it to Magix.
Thank you!! This fix in the thread below solved my issue.
Also try holding shift when clicking on preferences, clicking the internal tab, doing a search for "so4" , set the second line to "false". That helped my render freezes.