I have added the Confluence Cloud App in Teams and can sign in and search pages in another company's site that I have been invited to. However, I can't search pages in my company's site.
In the Confluence Cloud Teams app when I click "Configure Confluence Site" I can only see the other company's Confluence Site listed, not mine.

If I choose to Sign Out and Login again, via the Teams App, I am taken to the other company's Confluence Site instead of my Company's.

I can browse within the Sign In window to our Company's Confluence Site, but this doesn't change the Configuration for the Teams App.
Other people who do not have access to the other company's Site get the following error:

Is there some other configuration in Confluence that we need to 'allow' the Teams app to connect to our company's Confluence Site?