Drag-and-drop with multiple files on dock icon

DT doesn’t import multiple files dragged to the dock icon when ‘select group’ is chosen in the import preferences. With e.g. ‘global inbox’ this works fine.

This is a bug, isn’t it?

OK - I had a closer look now and it seems to be a problem of only certain file types. I don’t have problems with two pdf files but it reproducibly doesn’t work with a pair of xlsx and pptx files! Still, dropping them directly into a group works fine!