Trouble Exporting from iMove 10.0.9
iMovie has worked great for a long time, but lately:
When I go to export a file (even if the movie only lasts a few seconds), the circle in the upper right corner does not fill in. If I click on it, it says "writing [filename]", but the file is never written. So eventually (I have waited for hours just to see if it would ever finish) I quit iMovie. When I do, iMove crashes. When I start iMovie again, I can now normally export a file and the circle will fill in normally. But the next time I try to export a file, I am once again into Endless Writing mode and the circle does not fill in. So I quit, crash, open iMovie and export the file. In summary, I have to crash iMovie before I can save a file.
I restarted, used the Disk Utility which was no improvement, and I quit all other open apps, just to see if that would help, but nothing seems to get me out of this cycle. Any suggestions?