Zero alerting for potty

Blue is a mostly good 13 week old puppy. She has learned sit, is learning stay and follows me outside very well even off leash. However, she has one huge issue. She will not alert to pee or poop.

She has only ever barked twice during very excited play. I have followed all the potty training rules and advice up to/including a bell on the door I ring every time we go out. But she won’t do anything but a very fast sniff, followed a nanosecond later by a swift squat s pee or poop. And it also looks like her general sitting down position. The most she will do is a soft wimped if she’s in her crate at night.

So life has just been a game of picking her up anytime she sits and going outside. Which I’m sure is confusing her.

It culminated this morning with me waking up to the smell of poop only to look over into her crate next to my bed to see her whimpering because she peed and pooped in her crate, in fact on her puppy beef stick and her sweet potato chew stick.

Anyone have any advice/help? Or is it more likely this will just have to be endured?

Otherwise she’s s good girl. Just slightly naughty as she wants to chew everything. But will drop it now after enough learning.

Thanks in advance.