App icons disappear when you switch tenants

Since the most recent version of Teams was released, when I switch tenants (away from my home tenant, to another tenant in my multi-tenant organisation), I found that all the app icons have vanished from the sidebar.  Every time I want to use an app, I have to go through the process of adding it to Teams. 

However, although this lets me use an app during the current session, the icon never appears in the sidebar (next time I switch, I have to add the app again in order to use it). Same problem is happening to other users in my organisation too - we've not changed any settings. Both the Windows app, and browser versions are affected, although not the iOS app (so far).

Anyone else had this?