Site Technologies interview questions

I interviewed with Sites through a recruiter. I passed the first 2 interviews and I was told I would be interviewing with the CTO next. I waited and waited for this CTO interview, but they never scheduled anything within a reasonable time frame. Following up with my recruiter, Sites told them they were no longer interested in my candidacy. Sites did not provide any explanation for why they went from wanting the CTO to interview me to not pursuing my candidacy further. This entire process felt like a huge waste of time.