Hi Peter, glad to say the iPad performed without any issues last night after the problems prior to it. I have done over 1000 on a regular basis with no issues. I have my songs on my Mac arranged into 16 different folders, and no 2 songs have the same names etc. I normally copy over the songs from one folder at a time and wait until I can see in finder that the songs have transferred to the iPad before adding the next and so on. After I have done all the copying, then I ask stagetraxx to refresh the song list and then check the total at the bottom to make sure it equals what's in my spreadsheet count of songs. It was only by doing one folder, then refreshing the songs that I managed to get all onto the iPads. They always seemed to crash at about the same section of the refresh (3/4 done) and I suspected perhaps as you had said above a faulty track, but by doing the folders individually I managed to rule that out. My iPad Pro and iPhone 12 refreshed all the songs with zero issues and was quite quick to do it. the iPad Air and the 2021 iPad seemed to take a very long time for some reason. When they initially crashed, I checked the sw version and updated to the very latest, but it still crashed. Is there any way for me to force the crashlogs to you (if there are any)?? Many Thanks Dave