Generative Fill produced a bubble not a cloud

I'm using the most recent version of Photoshop. I started with a blue gradient. Selected the entire canvas and asked for "blue sky with one cloud"

I got this:

https://cdn.discordapp.com/attachments/1117237990989770802/1213246991082061904/image.png?ex=65f4c74f&is=65e2524f&hm=afd5163f5a76cd7e5e3671763605d7419d659b139e0a32471584237f1bf4a5f6&

"one fluffy cloud" actually gave me a cloud.

Firefly might need some more training on the difference between bubbles and clouds