[Method T]

...

I agree with this wholeheartedly, I'm just going over how it has been ruled in the past is all.

I'm assuming it'd be a case by case basis for the most part, but the one instance I'm referring to was in Spires involving Zaruma and Raven the Fae, when Zaruma left a scene with his High Agility/Afterimage. Grabbed his friends, and came back to the scene within ten minutes. Raven had immediately turned invisible after said scene via and RP and hid, Zaruma found him through ping and was given approval to 'Sense' him effortlessly.

At that time, it was expressed that invisibility can be sensed through, simply because one's latent magic/mana can be detected.

Ideally, this isn't the case anymore, but this is the only example I have when it comes to invisibility being used.