Some LED's are dying ?

Same exact thing happened to me. Had to send the unit back for replacement. It started with one led going out, then another. Dont know where you bought yours from, but Sweetwater sent me a new one out right away www.kemper-amps.com/forum/index.php?page=Thread&threadID=5226&pageNo=1 Sorry I cant get this link to work. Search "Where can I get my Kemper serviced" in this section of the forum to see the post.
Its on page 5 in this section.