I have this bizarre problem. When I and three friends are logged in, the number of them I can see varies from 0 to 3. I can manipulate that number by logging in and out myself, and getting them to log in and out. However, after having achieved all three online, if I press the "Casual" button they disappear. So if I try to set up a casual table for four by the time I have set it up my three friends are apparently offline, and so do not get invited. I must emphasise that BBO is telling me that people are offline when I definitely know that they are not. I don't know if this is of relevance, but I succeeded in setting up a teaching table. None of the buttons you press to set up a teaching table causes my BBO app's knowledge of who is online to glitch. This problem happens both on an Android tablet and an iPad. Any help would be greatly appreciated.