Reference checks leading to rescinded offer - IB to strategic finance?

Hey all - was wondering if someone could provide a bit of perspective on my situation. I started out as an investment banking analyst in M&A at an bulge-bracket bank last year. I had a ton of personal stuff going on back at home (family member with a chronic disease) and hit a low-point physically and mentally while working the job - really struggled with depression like I never have before. Was in a super toxic group and was getting worked constantly - eventually just had to quit about a year in. Left immediately and did not do a great job of communicating - things had come to a breaking point back home and for me. Obviously, the MDs and VPs were understandably angry and now that things are going better on a personal front, have been recruiting for the last few weeks and got a corp dev gig. I provided professional references at the firm who I worked with very closely and who knew well of my situation but I think the new employer did some off-the-list checks and I got a call yesterday about negative feedback. They asked me to provide additional references and I was honest that I didn't leave on the best terms and I don't think they'd accurately be able to comment on my performance. They are going to speaking to my two additional professional references next week to try and "confirm" the situation but safe to say its over for this offer right?

Would love to hear the collective wisdom or just any perspective.