Hello I am also having a pitch issue on my PX 560 that I bought 2 years ago, noticed this starting over the summer. Very strange. I have updated to 1.16 and still having the problem. I actually have a recording on my MAC but trying to figure out how to drag it over for someone to hear. Someone told me to try highlighting the transpose area on the display and holding the UP and DOWN keys (labeled YES and NO) that are next to the display screen simultaneously - it seemed to reset something, but I experienced the problem again this a.m.. very drastic tone issues, sounds like I am rather violently using the pitch wheel, but I am not, and it is secure in the off position...please advise how to add attachment if possible...