I created a private Tournament as part of my websites Golf Tour and none of my friends on my friends list can find it let alone play it.
They have tried searching for it and have also tried using the "Friends Tournament" filter, neither has worked. Yet the other day I created a Tour and they could see it and play it.
Interestingly, a friend of mine created a tournament, didn't make it private and myself and a friend who couldn't see it (we were in the same XBL Party) could see the new public one.
Also, I've done two rounds on it and only one shows on the leaderboard.
Not sure this morning if all my members are affected, as some were trying in the early morning and are from different countries, but after checking the leaderboard this morning, it was empty.
In case anything is needed to be tested or looked into, the Tournament is called "XBS Invitiational" on Sonoran and my gamertag is kpdub