Tether.to Technical Manager interview questions

Application followed by a 30min screening interview, very clear steps and friendly meeting, then I was given as assessment to do: a Project Management task for 3 days. I got a good feedback and was invited for an interview with a technical manager. the second interview went very well, and gave the impression to be so much positive. Unfortunately, two days later I got a rejection email. In brief, there is something wrong with this company,