Voice search only delivers results for destination airport

I am finding that Voice Search works well if there is a flight plan with a destination airport, and if I do not specify the airport in the request: it gives frequencies, runway details, etc., for the destination airport. But it will return nothing if I ask about any other airport. And, if there is no flight plan, it will not return anything for any airport. I turned on “Show Commands” and it is hearing me (although it shows “kilo” as “key-low” and it seems to struggle with “at” and tends to show “f” instead).

Update: if I FIRST ask “what is the elevation at” or “what is the distance to” an airport, THEN ask for tower or other frequencies, or runway information, etc., it works well. But if I start by asking “what is the tower frequency at” an airport, Mira ignores me every time.