I gigged with my PBC/6X for the first time last night. At random times it would just jump to a high number preset in the 300s. I had to turn it off and on again 3 times mid song during my set to reset it. Once it powered back up it was back to my presets and was fine until it happened again. I am only using about 25 presets. Any ideas why it's doing this or could it be something I did ? The fact that it did it a few times makes me think it's not anything I did and I'm nervous about gigging with it .