Prismier interview questions

I had what I thought was a great phone interview with the co-founder/hiring manager, the call ended with him asking for my availability to come in for an interview the following week. The following day after our call, I sent a thank you email where he AGAIN asked for my interview availability which I provided. The weekend passed and late into Tuesday evening I finally got a response from him, after I sent an email in the morning inquiring if a date/time had been established for the interview he requested with me. In his delayed response which left me feeling ghosted, he told me I was no longer in consideration. Very odd interview process and not a positive candidate experience at all.