Comment 31 for bug 807028

I had the same problem of frequent crashes with OpenShot 1.4.3 under Ubuntu 10.04 LTS 32bits :

1) Crashes associated with the autosave option (would crash after saving); solved by not using autosave.

2) Crashes associated with accumulation of actions that moves the playhead, whichever these actions are -- moving the playhead by hand, by jumps, by playing the project etc. No crashes associated with any other action.
Solved by upgrading to Ubuntu 12.04.4 LTS 32bits: the very same project that was started under 10.04 and would make OpenShot crash over and over, did not do so under 12.04.

NB: I had to duplicate the folder /usr/lib/pymodules/python2.7/openshot and rename the copy into /usr/lib/pymodules/python2.6/openshot in order to have a project started with 10.04 to be opened under 12.04 without the error message "the following transitions no longer exist", but this is another topic.

I hope these pieces of information can help.