The first time you pass a piece of ice each turn in which you used Inversificator to break all subroutines, you may swap that ice with another piece of ice.
Architects of Tomorrow
The first time the Runner passes a rezzed piece of bioroid ice each turn, you may rez a bioroid, lowering its rez cost by 4.
What happens if
1) an unrezzed piece of ice is swapped in place of a Bioroid?
2) a Bioroid is swapped for a Bioroid?
My interpretation is that for 1) the ID ability doesn't work, and it will spend the trigger (similar to Femme vs Tollbooth) so another Bioroid passed won't get you a discounted rez. For 2) I can't think of a similar situation, but my gut says the end result is the same, no love for the ID. Any other takes?