Selecting background pic a little bit puzzling

Layout list – edit:
klick Button "add a new Background Image"
klick green button “Add Background” and choose file
klick blue button (“upload”)
the fields for “Background Image” disappears and no Chance to Change the Background, but only
save and edit again solves the problem

It seems sensible for that field to remain on the form after upload, I’ve created an issue for it here

Thank you for bringing this to our attention.