I'm not getting any "Stolen Relic" alerts. At least, I've only gotten one.

I have the stolen alerts on, and I constantly receive "Stolen Food" alerts. Yet, I'm not receiving a single "Stolen Relic" alert.

I thought I might have been lucky until I go into my Relics page, and I see that yes, things have been stolen. But I haven't been getting any alerts about it.

A few days ago, I temporarily ran out of food. Only at that point did I receive my first "Stolen Relic" alert. Once I got food again, my Stolen Relic alerts stopped coming, and things kept disappearing from my unburied relics (and the counter for stolen relics kept going up).

I know I am missing relics. I can see the counter that says "Stolen Relics" hovers between 1 or 2 a day, and I know they're getting stolen as things are disappearing. But I'm not receiving any notifications about it, despite I've turned the notifications on, and I'm getting stolen food alerts.

What's happening here?

You can turn off alerts on.

There is a feature where animals, not other packs, will steal your relics that you won't get notified about

Theres also 2 different alerts for food and relics.

Yes, this is the answer.