iTunesConnect Testflight no builds available for iOS?

I am having trouble adding an admin to one of my iOS builds.

When I click to my build, it shows I have 2 people who can test it:

But this is not what I'm expecting. I am expecting 3 people. Because if I click to the ITunesConnect Users, I see 3 people.

But for some reason, my friend Yu Yu shows No Builds Available. Why is this the case? Under the Users and Roles, I can confirm that Yu Yu is an admin

What am I doing wrong? How do I allow Yu Yu to see my build 10 (23) ?

I had this as well. I removed the users from the test group (I did not delete them from TestFlight) and then re-added them. That gave me the "resend invite" option, which I used. The testers received the new invite, and were able to install the build.

I had same issue. For me, I simply had to go under "BUILDS" > click the + mark next to Builds(0) and actually click the check mark next to my build, then it allowed me to "add" the build for my "new" user. I don't know if this is your issue or if it will help, but it was my solution.

Gu to App Store Connect Users

and check your testers email

Remove and add the testers again, it worked for me.

As of early 2019 If your build is newly uploaded to AppStoreConnect then it will take a few hours to go through Apple's quick testing review before it becomes available in TestFlight management view. If you invited the tester before that, you'll need to re-invite him/her and the build will be available for the user.