bykai

I know a phd student that majored in history in his undergrad. He fell in love with computer vision, and is currently doing his phd in CS (and doing really really well actually). So, it's not impossible. Just write a good SoP and sell your story. Getting into a master's program at top 20 won't be too hard, although phd might be a bit difficult.

If I were you, and if money didn't matter and/or you could find a part time job, I would try to meet up with one of your recommenders or other profs and start helping out research projects unpaid or try to get hired as a "research scientist." We had an undergrad working as a research scientist, while he was applying for masters. This will improve LOR and publications, which are the most important things imo.

I agree your profile seems pretty good. Professors see new students every year, so the older ones tend to fade away over time. Then, they are forced to write "generic" LORs that don't really help. One thing that could help if you apply again is to prepare a small document describing every interaction you had with them, and describing why you think you are a strong candidate. I gave that to all three of my recommenders (two of them actually asked for it...) and I think that helped. I agree with JohnP1 on GRE/GPA. LOR and SOP are important.

Just heard back today for AI/ML Visits are March 1,2

AI/ML also... heard last week. no interview.