Spirit sometimes not making static noise

Pucci21

I was on a match, Crotus Penn i think was the map, i was doing the gen in the main building upstairs while spirit was being looped downstairs and she used her ability without any of the usual static noise, she got upstairs and grabbed me off the gen and i couldn't do anything cus it made no noise. It wasn't any TR suppressing perk cus I saw her get out of phase and grab me