I bought M5 form the app store a week or so ago and hadn't yet launched it. Yesterday I was reminded to check for supplemental assets to download for it and did so. I then finally tried launching the app but it quit without ever actually launching. This has happened repeatedly, continually despite various restarts, PRAM zaps, pref trashes, and permission repairs.
I do have FCPStudio on the same drive but I installed FCPX and Compressor4 as instructed by Apple and have had no problems at all with those two apps. Does anyone have a clue to Motion's inability to launch?
(I did try going back to the store to re-download but it does not seem inclined to allow me since it's aware that I already have it installed.)