I noticed an annoying problem when using HitFilm projects in Vegas Pro:
1. Drag a HitFilm project onto the Vegas Pro (version 15) timeline -> levels are changed (contrast increases - can easily be seen in the histogram)
2. Use Add "HitFilm effect" in Vegas Pro -> the same thing happens
3. Render the file in HitFilm (H.264 MP4) and drag it onto the Vegas Pro timeline -> levels are okay
This makes the integration of HitFilm into Vegas Pro (which is simple but handy) virtually useless. There was a discussion about the same thing here - but I don't see a solution...