Seems that for no apparent reason my list and macro lights just starting blinking in the middle of a show. I restarted the console and it happened again about 20 minutes later. Doesn't seem to impair any usage. Keys still work.
There currently isn't any logic or understanding behind these button turning on during console operation. It's a bug that has been around for a long time that is probably nothing for than a front panel firmware glitch. As you mentioned it doesn't appear to have any implications on console functionality.
