I’m returning to Line6 and they are shipping me a replacement. I also have. 2nd issue now. I whe to my nearest big box store to check my guitars and G10, and found the it only worked on one of my guitars. Very strange! I email Line6 that this is the third Line 6 product tha I got for ZZound that was defective. I asked what’s up with this. No answer back. Hopefully I’ll hear back from them on Monday.