[nanidin]

Yesterday: “Hey Siri, watch a movie in the dark” “Ok setting scene watch a movie in the dark”

Today: “Hey Siri, watch a movie in the dark” “I can’t find a movie called In the Dark.”

I also had a very frustrating issue randomly start happening because one of my lights had the word “lamp” or “light” in it. Thankfully googling the symptoms found others with the same problem and a solution, but it was baffling as there hadn’t been any changes made by me in over a year prior.

[Twisell]

Well it's clearly better to use non-ambiguous keyword to solve that. Like my scene name equivalent to "watch a movie in the dark" was called "cinema". Another was called "sunset" for instance.

[nanidin]

It worked for over a year before it became erratic. If it is problematic Apple should warn me in the UI. It worked again shortly after - making me think it is not deterministic.