Meetings I co-host do not show both on the web and on the windows app

Good evening, everyone.

I'm going thru a problem here and you might be abble to help.

I'm co-host a bunch of regular meetings at my work. It was set-up by another person, on their bussiness account, but I co-host them.

Something like two months ago they all desapeared from my windows app and from my web browser. Nevertheless, I'm abble to access them if I imput the link or the room ID and password.

What can I do to have them back at my windows app?