Okey so since no one ever started it since the changings of the support forums, I decided to make this thread. Here is the situation well known by most players (if I miss something, or something is wrong, please tell me):
XMB crash appears to only happen when you are connected to the servers, weither you're playing online or not. It can happen pretty much everywhere in the game, I've seen in happen at the start or a song, at the end of a song, in the song list, while browsing leaderboards, even at the opening video.
I, for one, don't experiment it as much as most of the people, I just got one tonight, but the last XMB crash I experienced was about 3 weeks ago, maybe more, but I know how much frustration this can cause to people. Even if I don't experience it much, it's very annoying having to wait for your bandmates to reload the game every time, loading the DLC list, which in this case, is usually 5-10min wait, so if everyone crash one after the other, well, you don't play much.
I'm doing this thread in the hope that one day, someone will say something that HMX will be able to use in order to fix this extremely annoying problem.