A. This is not Apple - it is Users trying to help other Users - Non (or very very few paid or in contact with Apple)
To contact them - use
B. About creating a new User Account
I created new account shut down opened it , opened I movie, closed down back into my account to export the Movie. Stillt he same message Error 49 .. will there be some fix up date on this?
Yes - the error will not go away when creating a new User - THEN Going back to the original one.
• When creating a new User - there is also created a new folder with a New Library with New and Error free Pref. files.
When You change back to the old User account - You also get back to the old Library with the eventually problematic files.
Why then ? - IT is a way to test if this might be the problem.
• New User
• iMovie working OK
• THEN one know that finding the Old Library and trashing the old iMovie Pref and Cache files might most probably help.
• If iMovie do not get any better in the New Account - then the problem most probably is something else.
Yours - running out of ideas - Hopefully others with more skill can fill in and help - Bengt W