Andrew / RafaMar:

We can not reproduce the error using Andrew's file.  The interesting information is that 2 people have now reported this error.

Andrew report shows:
FileSystem::update /home/guest/MLP FIM 1 Karusel Нет такого файла или каталога
Assertion fctx->async_lock failed at libavcodec/pthread_frame.c:155
RafaMar report shows:
MWindow::init_ladspa_plugins: can't create ladspa plugin index: /home/MIUSUARIO/.bcast5/ladspa_plugins._usr_local_lib_ladspa
Assertion fctx->async_lock failed at libavcodec/pthread_frame.c:155
 
The error is coming from running ffmpeg in conjunction with Cinelerra but I think 2 different operating systems with the report from RafaMar stating Debian stable.