I recently bought one of these guitar pedals and I’ve been really pleased. But a few days ago it started acting funny; loops were getting interrupted midway, the circular LEDs on the display wouldn’t match the duration of the loop that was playing, and the whole thing was just acting weird.
After lots of fruitless Googling for a solution, I was ready to return it as a dud. But then I came across this video that showed what I was doing wrong, and fixed it in about a minute.
Hopefully others who are having trouble with a “broken” Boss RC-1 pedal will come across this post and this video.