When I click on the little Stack Exchange icon in the upper-right corner of the viewport, it shows a list of "Your communities" and "More Stack Exchange communities".
Why does this site not appear in the list of "More Stack Exchange communities"?
When I click on the little Stack Exchange icon in the upper-right corner of the viewport, it shows a list of "Your communities" and "More Stack Exchange communities".
Why does this site not appear in the list of "More Stack Exchange communities"?
Trebor is right - private betas do not appear in that list.
You can, however, add it to Your Communities already: