Strange Sounds In Repeat Mode

[keniko]

This is really,really weird. Last night I put a 1 bar 4/4 metronome pattern in repeat mode to practice my picking techniques. I've done this a million times in the past. At the start I hear this tick and sampled keyboard sound in the background. Keyboard sample. Huh??? I've never recorded keyboards into my Micro BR. Where's this coming from? When I play any drum part or pattern it plays on the first beat. It's only on the first beat. When I take it out of repeat mode the sound disappears. What's going on? Again, where's this sampled keyboard coming from? How do you fix this? This is crazy. Help !!!!