output routing options

[stainless]

does it matter when selecting multiple outlets which one(s) are first?

I'm guessing it's operator error, but I 'm having issues which tracks routed to 1/2 and 3,4,5 etc for sends to a headphone mixer-

works fine for playback, but when I'm recording, some of the "sub masters" see a signal from the track (mainly the stereo masters)... but not the monos... although it's worked a few times...

so, I can't see anything different as to set up when it works like it seems it should, and when it doesn't