Another issue that keeps me from committing to Vegas Pro:
I've been testing the abilities of Vegas Pro to edit 4K UHD footage. So I decided to download some 24p footage, convert the videos to Cineform UHD format in Resolve and drop the two videos on to the timeline. As you can see I've resized the clips on each track to run side by side. I set Vegas to auto generate proxy files. I applied at the clip level a different LUT to each clip. The preview window is set to Preview Full to allow the generated proxy's to be activated for editing. Nothing else done to the clips and this is what I end up getting as I sat recording it with my cel phone to provide a visual clue:
The original clips were converted to ProRes 4444 and are huge in size hence my converting to Cineform. Those original clips also cause the same issue.
Is my GTX-660ti 2GB graphics card finally showing it's age or is this an issue within Vegas itself? I've gotten the same issue in both VP14 and the trial of VP15 - albeit VP15 the timeline plays full 24p frame rate while VP14 is varies between 18-21fps.
It doesn't matter if the LUT's are applied or not, this glitch happens after about 2/3 of the way through the test timeline. I've shut down each version of Vegas, and opened back up - this issue is random and doesn't necessarily happen at the same spot in the timeline.