ya, it repeats the same value for the full interval of each channel.
more clear in the 
attached .toe
Shuffle_bug_.toe (1.37 KB)
Its actually illegal to have duplicate channel names in a CHOP.
The Shuffle CHOP expects numbers at the end of each channel name, rx1, rx2, rx3 etc.
So I guess the real bug here is that the Select CHOP allows you create duplicate channel names. I’ll fix this.
Yah, it smelled suspicious when I found all channels with identical names, but I’m not a lawyer so I welcomed the illegal clones, why not.
good that you spotted the issue :ugeek: