Rendering stops at 4%


Today I was very happy to see, that I could finally compile kdenlive on my Linux machine again. I'm using Archlinux 64bit and compiled the package this morning. It no longer crashes during startup so I started creating some movies that I wanted to put into youtube. Unfortunately this never happened because of what happened whenever I export to any given format in kdenlive. Each time it starts rendering and stops exactly at 4%. Whatever I do, changing effects, using a different codec, nothing seems to work. It's a pity that it does that since I really thing kdenlive is THE video editing application for KDE or linux in general. Does anyone know what I could do to find out why it always stops at 4 percent? Or better, does anyone know how I can finally render my movies?

Thank you!