Can’t find locally stored photos on iPad

Hello everyone. I have 4.5 GB of locally stored photos and I have no idea which photos they are.

I’ve cleared the cash, I’ve checked every single album and none of them are stored locally.

My guess is that some loose photos are stored locally for some reason.

Is there a way to group them or find them or I have to go one by one? Or am I doing something wrong?

Thanks