Clicking on 'Remove' showed a loading symbol as if something was happening, then the page refreshed and the dependent was still there.
I figured out what was going on, though: the extra dependents had no names or birth dates. I made up some values to fill in those fields and then the 'Remove' worked. Note: NO dependents could be deleted, even valid ones, until ALL dependents had all their values filled in.
Seems like a bug to me. Remove should work even on dependents with empty fields.
