Teams Meeting invite (RSVP) not showing other meetings

We are working with Microsoft for some time (>100 days) on an issue regarding meeting invites in Teams, where the first time opening such an invite it is not showing conflicting or adjacent meetings. This can easily result in people getting "double booked" because they trust what Teams shows them.

We can reproduce this anytime and in at least 3 tenants and I would like to know if other users/tenants recognize this.

Some things to take into account:

You shouldn't have opened the week this meeting is scheduled in earlier today, as it probably some sort of caching mechanism/issue.
It only happens the first time you click on the RSVP option in teams.
We tested with/without MCAS, same result.
It also happens in a Teams browser session.

How to reproduce:

Send an invite for a meeting, to happen in e.g. 4 weeks, make sure there are conflicting/adjacent at that timespan.
Wait for the invite to appear in the Teams activity (do not check it in Outlook, as that will make the test fail).
When you click in the Teams on the invite, click on the RSVP option and check what you see (calendar is free it seems):
Click the X to close this RSVP popup and click the RSVP again (now the other meetings are shown):