Hey, so, I have been using iTunes Match in my 40000-song-strong library without any problem for the last three months. However, yesterday, iTunes told me there was an error and I should sign out and in again. After that iTunes Match did not work anymore, and by clicking on the iTunes Match button, I was asked to whether I would like to add this computer (which had been added before...). When I click yes (please add this computer), it just tells me that iTunes Match does only work with 25000 songs and I can click "OK". If I remember correctly, there was an "Ignore"-button before, which upon clicking, made it possible to add certain parts of the library to iTunes Match (which I did for around 20000 tracks). This is really a pain in the ass. Did anyone else have the same problem? Or even better, anyone knows a workaround (and please don't tell me to build a second library with less than 25000 tracks...I know and do not like this answer). Thanks in advance!