Couple of Questions

Using WiMP 12, try using MTP Mode , Use the Create Playlist button in the upper left, or under the main menu bar (very top), go to File > Create Playlist , or if you’re into old school, click [Ctrl+N].

In MTP mode, simple playlist generation is a key feature of WiMP.  Don’t try to shortcut the process, let WiMP generate the list and make the transfer.  Right clock on the playlist after you build your group of tracks, Select Add To Sync List, or drag the playlist to the Sync pane, after first clicking on the Sync tab at the right.

WiMP 12 will send the completed playlist to the Sansa.

With the Fuze+, incidentally, we have a cool new capability.  You can edit the playlist on the device!  Previous machines only allowed editing the GoList.

Bob  :smileyvery-happy: