On Stack Overflow and other network sites, when I attempt to open the inbox or reputation window, something opens very briefly but immediately closes.
This occurs on Chrome and Safari. Other users in chat confirmed that this occurs for them in Internet Explorer.
I am a member of two Stack Overflow Teams.
https://stackexchange.com/users/<userid>?tab=reputation
andhttps://stackexchange.com/users/<userid>?tab=inbox
still work.