Please see subject.
A bug or oversight has been confirmed such that fallback-image does not work in background image contexts.
Our use case is employing a separate, mobile-friendly hero image (i.e., less wide).
Thus on mobile viewport size we are using, e.g.:
{cf_mobile_hero_image @fallback-image:‘{featured_image:url}’}
Please see video showing issue and use case: Bricks > Fallback Background Image not Working
@itchycode and amazing Bricks team - please report updates/fix in this thread. Thank you so much.