1st glitch that I've found with the 1.15 firmware is...
I tried to transfer songs from my Mac (via Android app transfer) and pull those files with multi-layer folders and there was a warning then the app closed itself.
Reopened the app and did transfer the folder one by one, in single layer, and it did transfer those I wanted. However, I tried and select those songs under the folder that I have added new files in, the 240 gave me a warning something like "too many xxx files", can't remember the exact wordings and I even not able to play songs that has been in the same top folder. At the end, I have deleted the entire folder with hundred of songs and redo the file loading and now it operates back to normal.
Anyone had experience the same with new 1.15? I didn't encounter any problem with the 1.11 whatsoever.