I am in Rosenow, Rosenow. 

    After trying many different approaches, GPT–6 
    Astra focused on using the repeated place name 
    ROSENOW ROSENOW as a crib. 

(Is it possible that this is a misreported detail? It feels like a singular ROSENOW would be an equally effective crib)

Out of interest, what was the ciphertext?

Edit: Found it from here: https://mvueh-enigma-solved.carterl.chatgpt.site/

    ICRVSORMCCWQTATYEVFXDBZGGSNXWLPSYWZYTCBSWULRTBZCVGODVJUSLSOOMJQJZSXSEBZPEYMDNXJYTC

Do we have any kind of transcript as to how the message was cracked, and whether this was cheaper or more expensive than simply Bombe-style trying all the combinations?

Interesting. Do we know the reason why those specific messages were sent with different keys? I would imagine that there were separate keys for special high-security messages or something like that, but the almost identical content and the way the key was changed here (first only part of the configuration, then suddenly everything) makes it look more like an error or a test.

Why wasn't this in the article?

That's crazy. Can someone share context of the message.

The place is Rosenau actually.

was the misspellings deliberate?