Groups almost unusable

Are you on Steam or Microsoft Store version?
Microsoft Store

Are you using Developer Mode or made changes in it?

Brief description of the issue:
Groups in MSFS are almost unusable.
Sometimes it is impossible to load person into groups. I send the invite, the Person accepts, but he dont get into my group.
Sometimes people are leaving group without intention. they simply do nothing, but they get kicked out.

And by the way: the maximum size of a group is way to low. Please set this at least to 20 for groupflights!

Build Version # when you first started experiencing this issue:
its from beginning on until now!