On the latest firmware, I’ve had several instances where the S2400 will add a loop to a sample by itself. When this happened, it kept looping the sample (a high-hat) even after I had set the loop number to 0 and turned looping off. It basically rendered the sample unusable. This was a sample I had just recorded directly into the S2400. I’ve only had this happen 2-3 times and couldn’t find a way to reproduce the bug. I’ll add details if I find out how to reproduce it.