CoStar Group Sales Executive interview questions

Recruiter reached out. Video interview, followed by an in-person interview with the hiring manager where I was asked to conduct a presentation on something I’ve sold previously. That was followed by a quick video interview with a director. Received an offer, which I accepted... I was then told the offer was rescinded a week or so later due to something being flagged related to employment verification on the background check. I asked the recruiter for clarification and she refused to provide citing HIPAA laws as preventing her from being more specific (HIPAA refers to medical privacy, not sure how that applied). I then retrieved my background report, pointed out the flag appeared to refer to my employer’s payroll company as being mistaken as my current employer. In response, I was informed my offer being rescinded had nothing to do with the employment verification or background check at all and was simply a business decision the company made.