Myedspace interview questions

The first interview was just to get to know me better, the second one was a scenario based test and the 3rd was a culture fit. The interviews were 1 month apart each. After the final interview I was told I would hear back within the week. After 2 weeks I followed up and was told that they hadn't made a decision yet. After another two weeks I followed up again with no reply and after around a month I saw that the job had been reposted. I emailed one final time to let them know that I was still interested and if they could provide some feedback, but I never heard back from them again. I feel like it was incredibly unprofessional to be ghosted after the final stage.

The first interview was with VP of Product and went nicely. I got a take home assignment to be delivered in less than a week. I delivered the assignment on time, with all what it was required, also covered the optional tasks and even went beyond adding more features. They took more than 2 weeks to review my assignment. I was supposed to have a review call to discuss my approach for the assignment but instead I got an automated rejection letter with no feedback on my assignment or concrete reason of rejection.