Spotted a bug in Noctua Sky.
When you click a planet and the info box appears or updates, all is well. That is, all the information shows, as expected. But if you click a star, the distance, RA/Dec, and Az/Alt show as zeros.
Interestingly, if you change the time, the missing values appear. So, if you really need them, go forward one hour then back to the original time. A little workaround.
Guillaume responded. He's looking into it.