Effect channels as selectable input source gone?

I can’t select effects channels as an input source for new tracks I’m recording. Used to be able to, it was great for printing outboard reverb returns. Is this gone now?

FIXED - seems to work now, don’t know why it wouldn’t before, probably operator error.
It’s my first day…

Probably the track you wanted to arm for recording that FX channel had exactly that FX channel assigned in its sends?