Button entity showing as a Scene in Google Assistant

I have just updated a switch entity to a button entity which works fine via the UI and via an automation and a remote button.

However, it is showing as a ‘Scene’ in the Google Assistant page and it can no longer be controlled by voice command (the assistant says it doesn’t understand). It worked as a switch (effectively always turning it on).

Is this a bug?

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I seem to be having the same issue. Has there been any updates on this?