Understudies/Standbys in City Center Encores productions?

I haven't been to an Encores production in some time -- I was a subscriber from the beginning, but I gave up my subscription about ten years ago. When I was going regularly, they did have understudies listed in the program, who were mostly (maybe always) members of the ensemble. In my experience, I never saw an understudy go on for a leading role in an Encores production.

I'm not sure if Encores still uses understudies. As I said, I haven't been to a production of theirs in years. (I was planning to see LOVE LIFE, but we all know how that turned out.) Nowadays, it seems like Encores is doing fully staged productions. Back in the early days and into the mid/late 2000s, the productions really were semi-staged concerts, with performers on book. Blocking and choreography were usually minimal unless a show (like CHICAGO) really called for it. I'm guessing understudies, most if not all of whom were also choristers, were minimally rehearsed, and if they had to go on, they could perform script-in-hand.

I've been going to Encores! since the first season, although I haven't seen all of them. I have many of the playbills, including for some I didn't see, and I don't think understudies are listed in any of them.