Problem Details: I've referred to the forum post that had the solution ( t/102569 ) but when ever I go to change the text for the beatmapSetID to -1 and save it, when I reload back into osu! I'm greeted with the same message because it reverts back to the original beatmapSetID, please help.
Video or screenshot showing the problem: http://puu.sh/n3bgw/86162adab1.png
osu! version: 20151228.2
Video or screenshot showing the problem: http://puu.sh/n3bgw/86162adab1.png
osu! version: 20151228.2