Domande di colloquio per Python Full Stack Developer presso momox

Quick, easy and nice people during the process, went to their offices and had 2 parts, one with the cto and one leader and the second part with 2 devs, next day they called me with a positive review and asked for salary expectation I gave to them and the next day they called me again saying that they discussed for long time but they decided that I was not a good fit for them. I am still trying to figuring out what happened.