Random glitches in Teams - missing calendar and meeting chat

[Magnus Hedgården]

I've noticed some random missed features in Teams the last days. Some users (including me) report missing calendar icon in Teams (I missed it all day yesterday but today the icon is back). In a large meeting today several users didn't see the chat icon during the meeting and can not after the meeting see the chat history in their chat log (as I can do).

Is this temporarily bugs due to huge amount of users in Teams these days?

[#2]

@Magnus Hedgården our organization has noticed the exact same problem with the chat icon missing during large meetings. 

[#3]

Any luck finding what was causing this? I am having the same issue with very random users, we don't have any polices in place we are using the default policy.