I upgraded to the 2015 version for two primary reasons;

1.  Multicam edit of 4 tracks at one time.  In 2014 version, I could only have two source tracks at any one time.

2.  I was hoping the DVD/Bluray creation bugs were resolved.

I can't yet comment on item #2 because I can't get past Item #1 at the moment.  

I've tried for weeks to get my multicam preview window running smooth enough to choose edit points but have had absolutely no luck.  I've tried only using two source tracks, tried proxy files, tried moving all files to one fast drive, etc.  No matter what I do, the video in the multicam preview window freezes every few seconds making it impossible to choose tracks.  My computer, my HD source files, etc. are all the same as I had edited last year in the 2014 version.  To confirm that it's an issue in the 2015 version, I opened my new 2015 Project file in the 2014 version of MEP Plus and there was absolutely no stutter in the preview window.  I didn't get any errors opening the 2015 project in the old version (probably because I had no transitions added yet....just the aligned footage from four source tracks and some intro titles).

Has anybody else experienced multicam issues in the 2015 version that they didn't have in the 2014 version?