Passes Window

[radiohead]

I am still getting familiar with this program & apologize if this has been covered before.
I have created a custom group of about 70 satellites including ISS.
When I go to the passes list, ISS doesn't appear in it.
Even if I set the time to 4 or more hours, it still doesn't show in the list.
I haven't checked all of the entries, but most other seem to be there.
What am I doing wrong?