Intact interview questions

I had a phone interview that last about 30 min. One week later they sent me an e-mail letting me know that I wasn't retained for the interview stage. They didn't explain why. 1 week after receiving this e-mail they contacted me to see if I was still available and interested by the role. They finally reviewed their criteria and decided that they wanted to meet me ( after letting me know that I wasn't a good fit for the role ). I found it odd but I was interested by the role so I decided to go and meet them in person. They day after the interview they asked me to come for a final interview a week later. The final interview went well however a few days later they called me to let me know that they decided not to move forward with me because I didn't have the right profile for the role. They seem to be very flip flopping in their decision process.