OK, so I found a fix = it’s a money grab from Microsoft!
Of Note: I only play on Xbox Console. I don’t/can’t play games on my PC.
I spent 3 days trying everything I could find. Entire reinstall of my Xbox console, erased everything. Even tried a different network. Also tried the change country option. Nothing worked.
Here’s what I discovered: When I tried to go online (for The Trial or Horizon Your) I kept getting the option to ‘upgrade’ my Game Pass subscription. An upgrade from Game Pass Console to Game Pass Ultimate. I don play on PC, so I’ve never needed ‘Ultimate’. There is no advantage to me to have Ultimate.
Well, obviously, the game knows my profile and what subscription I have. How else could it give me the option to upgrade???
I gave up, and took the upgrade to Ultimate. This was a last resort. Well, lo and behold, it worked. So I can jump into the Trial and the Horizon Tour.
Who knew that this was just a money grab?