I have a 2TB Mycloud and Xbox one. I try to configure DLNA, it works fine but I have no thumbnails.
I go to twonky server page, all is ok. Xbox one is recognize as Xbox 360, i change to Windows Media player or Windows 7/8 nothing changes.
I configure my windows 10 laptop for streaming medias, and my xbox one shows thumbnails immediately.
I rebuilt database, my firmware is updated, nothing changes.
I try to connect my android phone and i have the same issue.