A Major Bug

So I recently picked up an iPad 3 purely for recording guitar tracks with GarageBand, as Im currently saving for a new pc. The other night I was tracking a song, had the guitar parts tracked( using AMPKIT) as well as drums, a bass line and some keyboard parts. The following day I went back to continue working on it, but when Id try and record a guitar solo over the track, it would freeze after Id stop the recording. It keeps doing this whenever I do anything to modify the track (copy and pasting parts to other sections, recording other parts, etc.) Id really like to see this fixed as soon as possible so I could keep recording my music.

surrounds about GarageBand