We are unable to share Excel or Word documents that are stored in SharePoint Online. When we open them in the desktop app and click the Share button at the top of the window, then enter some names of colleagues, it just sits there searching:
Can anyone help with this please? We use a proxy server in work (Sophos SG UTM) but it also fails at home when bypassing the proxy. Everything looks to be OK with AADC and searching for users elsewhere in Office 365 works fine. It seems to be broken for all users.