If you defined you channels in the sequence to use as 6522 and your ETD as 8192 that is the kind of error that is being reported. I define my sequence as having 8192 channels with about 1500 or them labeled as spare or unused and also put the ETD at 8192. then all is good. In vixen you can move channels around on your programming screen so I always put the unused spares at the very bottom of the list. I have multiple channel orders available with different sorts, by color, by effect and color, etc.