I have been using Movie Edit Pro Plus for many years, which is very good product and still working. Today, I thought of giving it an upgrade, and thus purchased and installed Movie Studio 2022 Platinum. Demo MVP files can be opened and played, which means my installation is correct. But, problems:
(1) My biggest existing MVP, with 9 "3840x2160, 30 frames/second" MOV files inside, cannot be played. Movie Studio 2022 Platinum simply hung, I had to use Task Manager "End Task". This MVP was created with Movie Edit Pro Plus a few days ago, and it is still working with Movie Edit Pro Plus.
(2) So, I started a new project using Movie Studio 2022 Platinum, and loaded those MOV files one by one, testing to play along the way. 1st MOV file loaded, it can be played; 2nd MOV file loaded, both can be played. By the 7th MOV file, Movie Studio 2022 Platinum hung, I had to use Task Manager "End Task".
Please let me know how to proceed with diagnosis. Thank you.