https://www.cnet.com/news/facebook-keeps-fumbling-political-ads/

Facebook blocked this ad for an open mic night because a bio on the event's page referenced former California state Sen. Mark Leno. 

The problem was that the bio of a featured attendee, florist Guy Clark, mentioned that years ago he'd received a small business award from Mark Leno, who'd been a California assemblyman at the time. That invited more scrutiny from Facebook.