Haven't had it in the 7.anything versions of Kdenlive. Upgrade path from
7.0 to 7.3 was rough, as I had to manually remove MLT components and their
dependencies and replace them.
The KDE4 versions of Kdenlive have been great-even on the Intel Atom.
I still save constantly as a precaution,
I have not tried 8.10 or 9.04-but the repositories list the exact same
upstream version of Kdenlive. Different PROCESSORS, though have a major
effect on "crashiness" of Kdenlive. If a library change and a new build from
the same source changes the bug, the bug is presumably in one of those