I updated the drivers for my Nvidia 980m and installed Hitfilm Pro 2017 Update 5 last night.
I rendered out a queue of projects using Neon Path.
All shots that used Neon Path did not have the Neon Path rendered.
I rolled back the Nvidia driver to the previous version and re-rendered. No Neon Path.
I rolled back my HFP 2017 Update 5 to Update 4 (THIS is why I keep old installers!), and the Neon Path rendered correctly.
I re-upgraded the Nvidia drivers to the current version and re-rendered from HFP 2017 Update 4. The Neon Path rendered correctly.
Conclusion: There is a bug in Hitfilm Pro 2017 Update 5 that is affecting Neon Path.
Anyone else experiencing this?