I noticed that many user on the forum are testing and debugging Kdenlive 0.4 and MLT 0.2.3, which are deprecated versions.
Very few people are testing the SVN versions, or there would be more bug reports.
IMHO we really need to release Kdenlive / MLT in their present SVN versions.
It will allow people to benefit from a more stable environment. Also, it will help discover bugs.
The is no "perfect" free software.
A monthly release for Kdenlive / MLT would help the community digging in the code and working in teams.