Rendering crashes

I am attempting to render a project, and while it works fine for the most part, at the end it states that "Rendering crashed", giving me this error:

Rendering of /home/dainius/kdenlive/untitled.webm crashed
plugin_mgr_get_object_file_plugins: error finding ladspa_descriptor symbol in object file '/usr/lib64/ladspa/blop_files/square_1643_data.so': /usr/lib64/ladspa/blop_files/square_1643_data.so: undefined symbol: ladspa_descriptor
plugin_mgr_get_object_file_plugins: error finding ladspa_descriptor symbol in object file '/usr/lib64/ladspa/blop_files/sawtooth_1641_data.so': /usr/lib64/ladspa/blop_files/sawtooth_1641_data.so: undefined symbol: ladspa_descriptor
plugin_mgr_get_object_file_plugins: error finding ladspa_descriptor symbol in object file '/usr/lib64/ladspa/blop_files/parabola_1649_data.so': /usr/lib64/ladspa/blop_files/parabola_1649_data.so: undefined symbol: ladspa_descriptor

*** glibc detected *** /usr/bin/melt: free(): invalid pointer: 0x0000000000ee3a00 ***

I suspect that this is because of audio effects that I have applied. I've noticed that the video is available even if it states that it crashed, but I can't hear the sound there. The tracks that I can't hear correspond to the ones I have the audio effects (Gain or Volume (keyframable)) applied to.

You can find the full backtrace here:
http://pastebin.com/dFyRnYTa

If I try this with Sox Gain, I can hear the tracks fine (and with the right volume level, I believe), but it still says that it crashed. The only other audio effect I have on is Declipper, but I can hear the affected track fine as well, so it's quite puzzling. Any idea what is going wrong here?

Using openSUSE 11.4, Kdenlive 0.7.8.

Forums:

I've just updated to Kdenlive 0.8 and tested a few more cases. I've managed to reproduce this and it's definitely because of Declipper. I don't get the crash message if I use Gain alone.

I don't do anything special with the sound, just cutting and editing different video+sound clips and always at the end I get this message. Also using openSUSE 11.4.
I get the same error message, simply by giving the command 'melt --version' which shows 'MLT melt 0.7.6'. The package is from the Packman repository and is 0.7.6-2.2.