Panorama doesn't work

I try it in English, sorry 🙂 I know its the wrong group but i don't find a group for Photoshop Elements 15. Please move it in the right group ...

My Problem:

I try do make a Panorama Picture with 7 Pictures based. I activated all the pictures, start the assistent and it seems that it works like in Elements 14.

It works and works some time an than "nothing". In the meentime i saw for a moment the preview in landscape.The screen goes back to the menue in the Assistent where i can chose the functions, although the Panorama funktion. Nothing else.

Whats wrong?

Thanks for your ideas 🙂