Teams the sharing icon in the chat rooms is gone

[_Przemek_]

Today in the morning we noticed that the icon for inserting (sharing) files in chats has disappeared. Mainly in chats or meetings with external users. Others have disappeared along with this icon. Details below. Is there anything known about problems with the service?

Missing icons:

Another chat its OK:

[#2]

Hi @_Przemek_ I think the issue is the lack of ability to share files with external users on the call.

Share a file with someone outside your team in Teams - Office Support (microsoft.com)

[#3]

We have external sharing enabled. The problem suddenly appeared. We were not doing any configuration at the moment changing external settings