Can anyone remember Lena being called out by the buzzing?

I just listened to episode 23 and I noticed at the begining of the episode a couple of times Lena seemed to lie but with no audio glitch. "I see", "I'm sure this is Alices doing". I might be wrong the buzz only seems to happen when someone specifically says something knowingly missleading. So sarcasm doesn't seem to count.

Still its got me thinking maybe Lena is immune to whatever force is listening. It would be an easy theory to disprove if anyone can remember a time the audio marked a lie from Lena.