(Don't worry, there's only two.)

The first small problem:
I added a custom song that lasts for about 4 minutes and thirty seconds. When I play it in-game, the disk stops spinning about halfway through the song and allows me to choose a song (while the first song is still playing.)

Second problem:
I can't confirm this 100 percent because this happened once, but when a custom song was playing in a co op session, both the host and I started getting connection interrupted the whole time and progressively got worse. Is this a common error something completely unknown?

Any feedback helps! Thanks for reading.