Rohit was great support to help me solve my problem, you can not have a project more than 30 min long as 1 project. My solution was to divide the project into 6 reels as separate projects not just EDLs within 1 project
If the timeline is too large Resolve will run out of memory and take a long time to save or just quit.
So now I’m working from 6 x 15 minutes projects named reel 1, reel 2 , etc
I just loaded the DVCpro hd project in Final cut and the scopes shows over 100% video signal in very bright images, then I sent to color and it confirms high levels, in color you can retrieve that extra 7% or so of high level