Something went wrong.....

I get this message when I try to make an image for an Ubuntu install:

Attention
Something went wrong. If it is a compressed image, please check that the archive is not corrupted.
The elevated process died unexpected.

I tried it with 2 different formatted USB drives, both download versions Ubuntu 20.04.4 and 22.04.1. Nothing helps, only this error meassage.
All the best, Peter