Initially, the review process was very speedy, but then there were changes in the contact persons in the correspondence and suddenly it took a relatively long time before we received feedback on the revision of our review. This was very positive from one reviewer, but the paper was then rejected with a few arguments from the assistant editor. We could not understand why we were rejected in the 2nd round. The process was not transparent. When we asked for clarification and a re-examination, we were put off for a very long time (apparently a reviewer and the assistant editor could not be reached), we received another rejection at the end of Dec. 2023, which was not entirely comprehensible to us with regard to the arguments.