Generate Account Description smart action not working

Summary:

We're trying to implement the smart action "Generate Account Description" on Redwood Account, but it's not workint as expected.

Content (please ensure you mask any confidential information):

The feature was enabled in Setup and Maintenance, and the Smart Action was enabled as well.

However, once in the account page, when we call the action Generate Account Description, it doesn't show any description at all, for any account.

Version (include the version you are using, if applicable):

25B