Don’t know why, but everything is working now.
I did change some usb cables. (All the original cables) and now it works. Scenes created on the pedals and hub show up in the desktop app. (After hitting refresh button) And if I ‘save as’ I can rename them and the soleman gets the updated names.
After editing the scenes the normal ‘save’ button also works. (Star behind the scene being edited disapears)
Really don’t know what is different from the other times I tried.
I changed cables, power adapters, usb-hub or no usb-hub multiple times before. But all of a sudden tonight everything works! Good times!!!
Only thing that remains is that the scene numbers on the soleman don’t match the scene numbers of the hub. But I can live with that.
Thanks for the help!!