Exclamation [Q] Stock gallery/Photos not showing new downloaded images?

Apologies if this has been posted before, I tried to use the search feature but it was giving me an error saying it was temporarily unavailable.

For some reason any downloaded images to my phone (into the folder Downloads or otherwise) are not showing in the stock gallery app? I've tried force stopping the app, clearing the data and cache but still it doesn't want to show the new images

The files aren't corrupt and can be seen in ES File Explorer perfectly fine and I've downloaded Quickpic to see if they show on there, which they do.

Can anyone help?

Thanks!