Hello from Germany! Today I have bought an iPhone X. I love my "offline" m4a. buyer Music Data, so I had managed my music for years manually. Now I want to this to my new iPhone X, set to manually synch music in the settings and selected the songs I want, drag and drop it to the iPhone symbol in iTunes, in occures "preparing files" or something like that, step 2 from 3 in synchronising, aaaaaaand thats it. No finishing, no music on my iPhone. Is this bug known in iOS 12? Is this an 10.14 bug? Please help, thanks.