I'm new here and I don't know if this is a bug or not.
When I go to the tables screen and select a game to join, many times after a short pause on the "ready" screen, it then kicks me out to the "Create new table" screen.
Is there a reason for that or is it a bug?
I can only guess that the host of the table you wanted to join kicked you from the table. I don't know where you are supposed to end up then.
A better approach to finding games is to use the Matching tab.