[Sasa Krstic]

Hi Florian, I’m working on that switcher for a while and it seems that you connected wrong video out to your recorder. On the back side there are PGM out and PREVIEW out. PGM out is proper main video and audio out and I think you connected it to PREVIEW out. When you start transition, preview screen shows you preview image, than changes to pgm image showing transition and duration and after that it changes to next preview inage. Preview image is what you are planning to show next in program. I hope I helped.