Here's what I mean. https://www.screencast.com/t/1s0vpbtAK
I doubt if it has something to do with the browser's cache, for I face the same problem using my cell phone. Has anyone had the same problem and gotten over it?
I am talking about red false "notificatins". I call red false notifications all notifications which appear even if there is no any Italki activity connected to my personal actions (for example , there is no comment on my topic but i receive red false notification)
Regular (not false) notifications disappear right away . (as you said).
Red false notifications dont annoy me (only when I am in bad mood))