What’s happening is here is that we are basically Y splitting a signal.
One goes directly to outputs A/B.
The other goes via a processor, (it’s the same with all the fx), & then to output A/B.
This processing take time, & this puts it out of phase with the 1st signal.
If you don’t want to use the mix control to balance both signals then you could reassign Track 5 to A/B & turn the mix control on Track 6 to full.
This will give you wet & dry.
I’m not in front of my machines ATM but I suspect the problem with this method will be that the Tracks are running in line so if you pull Track 5 (dry) level down Track 6 ( Wet) will lower as well.
I’m guessing what you’re after is a kind of aux send type of thing so you can mute/ unmute wet & dry signal at will?
I shall ponder this some more 
