FCPX will not transcode, other bugs.

I had nothing but love for FCPX until the 10.0.6 update. FCPX now freezes and crashes on me several times a day.

Currently, I cannot transcode footage.

I select the footage, right click transcode, select proxy, hit ok, and nothing happens. Cmd-9 shows now activity.

I select the footage, go to file>transcode, select proxy, hit ok, nothing happens. Cmd-9 shows now activity.

All the footage in my list shows "missing proxy" when I select to view proxy through the preferences.

What can I do?

Other bugs- FCPX crashes on every single export, sometimes upon finish and sometimes before. This happens whether I am sharing the file to youtube, vimeo, or mastering.

FCPX suddenly has serious problems importing my footage. I need to import fail, re-import from camera/archive, repeat several times for 30% of my clips.

None of these things happenned before the latest update.

Thank you for any help or informaiton