Why is my polygon not showing on MetaMask?

Hello, I'm encountering a puzzling issue with MetaMask. I've been trying to view my Polygon tokens, but they simply aren't showing up in my wallet. I've double-checked that I'm on the right network and that my wallet is connected properly. Could there be some other reason why my Polygon tokens aren't visible? I'm really at a loss here and would appreciate any insights you might have. Thank you in advance for your help!