URL Aliases For Translated Menu Links Not Working

Default language = English; Secondary Site Language = Spanish.
Language Detection & Selection Order: User/URL/Browser

For each menu link, I have URL aliases for default and translated secondary language.

If I log in as a Spanish user, my menu tab links do not display the url alias.
If I use the language selection block to change languages, regardless of the loged in user's language, the url alias works well.

What am I missing?

Thanks for your time and consideration.