If you opened Microsoft Teams this morning and discovered channels that used to live in your team have vanished—or the Teams button and channel lists simply aren’t where they used to be—don’t panic. This is a common, usually reversible issue that has two broad roots: deliberate UI changes...
app setup policies
cache clear
cache corruption
channelrestorechannel visibility
chats and channels
combined view
hidden channels
it administration
microsoft teams
office 365 groups
separate view
teams admin center
teams channels missing
tenant policies
troubleshooting steps
ui redesign
uninstall reinstall
web app testing