Lens corretions does not works

Use Kdenlive Version 0.9.6 with Ubuntu 12.10 64bit.
Lens Corrections (that first Ubuntu 12.04 worked) now does not work. Why is that?

Yeah. I find this broken too. You should lodge a bug report see http://www.kdenlive.org/bug-reports and http://www.kdenlive.org/mantis

If you just need simple barrel/pincushion compensation, try the defish effect.