I cannot see my pinned files in Sharepoint

Question

Hello,

I have a problem with online page of SharePoint. Everything worked great until one day I noticed that I no longer see my pinned files. When I click on the dots I still have the option to pin/unpin the file to top of the page but the files don't appear. I got information that file was succesfully pinned, but nothing really happens. I cannot see file on top of the page...

Does anybody know what seems to be a problem? I didn't change anything in settings at that time. It's just that one day I log into, and pinned weren't visible anymore.. When I checked the files library in Teams page, I can see them pinned, but not on the online website. Also, it's not only my problem because my colleague who has access to that page with 'owner' permission (same as me) also cannot see them.

Thanks