I can't delete music other than by clicking the delete icon on each song. If I select more than one and click the delete button in the top bar, the checkmarks on file suddenly disappear but the files remain. Connecting via firefox 39.03, no error messages. Also connected via chrome Version 44.0.2403.157 m, same problem. I saw one other complaint on this but apparently they didn't follow through answering some questions. Have lots of music that I want to clear, looking for a solution.
I was able to delete multiple photos and videos.
I was able to delete multiple photos and videos.