There was an openSUSE Packman packaged update to kde4-kdenlive yesterday from version 0.7.3-0.pm.1 to 0.7.3-0.pm.2, for openSUSE-11.1 which included updates to some other libraries. I applied the change to my 32-bit openSUSE-11.1 laptop's KDE-3.5.10 desktop, and it immediately broke kdenlive, yielding the error :
A Fatal Error Occured
The application Kdenlive (kdenlive) crashed and caused the signal
11 (SIGSEV)
I suspect the update was to take advantage of a new version of libmlt/mlt (from 0.3.8 to 0.4.0) but it did not work for me.
I have my software configuration manager (smart package manager) setup to save every rpm I install, so I rolled back to the previous version. This was a bit tricky because of the various dependency packages that I had to also roll back. I ended up typing "rpm -qa --last" to see what rpms I had installed, and even then I had to do some detective work to roll back the dependencies. In the end I rolled back to
* kde4-kdenlive-0.7.3-0.pm.2 to kde4-kdenlive-0.7.3-0.pm.1.i586.rpm
* re-install libmiracle1-0.3.8-0.pm.1.i586.rpm
* libmlt1-0.4.0-0.pm1 to libmlt1-0.3.8-0.pm.1
* re-install libvalerie1-0.3.8-0.pm.1.i586.rpm
* mlt-0.4.0-0.pm.1 to mlt-0.3.8-0.pm.1.i586.rpm
kde4-kdenlive now works again on my openSUSE-11.1 PC with kde-3.5.10.

Yes. The packman packager (Toni) put a downgrade on Packman to fix the problem.
I discovered others on openSUSE forums with the same problem, so I emailed Toni on Wednesday PM, and by Thursday noon he had a fix out on the repositories. Toni sent me this:
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I redowngraded mlt-package to 0.3.8 and updated kde4-kdenlive to 0.pm.3 release (simple rebuild, with increased release tag)
So the problem should be gone for the moment.
For the record, you need now:
* mlt-packages 0.3.8 with release tag 0.pm.3
* mlt++-packages 0.3.8 with release tag 0.pm.1
* kde4-kdenlive 0.7.3 with release tag 0.pm.3
those packages should be installed by a selection of the new kde4-kdenlive package (but I have no experiences with downgrades handled by zypper). But as kdenlve now requires libmlt++1.so.* it should work.
the reason for the troubles are simple:
http://www.mltframework.org/twiki/bin/view/MLT/ExtremeMakeover
mlt framework has massive changes and so I think we'll wait for kdenlive to follow this changes
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