I solved it, the problem is the playback, it’s trying to play the sequence “RAW” in 16 bits/sec, and if you have a 2k file or above, it’s a recipe for a good crash, so heres what I did, in the project settings I changed the playback from 2k- 16bit/sec to way below the 480i, since this is just for monitoring I sent it to just NTSC 16×9, and the workflow is very smooth, similar to how you would treat EDL’s when dealing with laaarge formats, you edit on low res for good playback and render in high res. Oscar 1 – DaVinci 0.