Problems with rendering video on Fotomagico 5.6.10

I have a small slideshow with both photos and video (and music also). When i try to share the slideshow on Youtube or Vimeo or simply save a video on my Mac, FM starts rendering and stops after rendering the first video.
Anyone have the same issue?
Hardware and software
MacOS Catalina up to date on MacBook Air 2018 16gb ram
Fotomagico pro up to date fully licensed


My blog