Meter interview questions

Met with recruiter and they went over the interview process. Met with a hiring manager and they gave a mostly behavioral interview. Then had a take home that took a few hours.

Completed 3 interviews and submitted a homework exercise for further discussion. Subsequently blanked completely, even after follow up mail to hiring manager and recruiter requesting update. What started as a good, positive engagement ended in a very poor experience. After taking time to complete 3 interviews and a work submission I feel being blanked entirely was frankly rude and unprofessional.