Received an invitation for a first round interview with an HR recruiter. It went well, and I received a take-home assignment to complete before ever speaking with the hiring manager or confirming that he/she was interested in moving forward. The take-home is highly ambiguous and certainly not completable in the suggested 2-hour timeframe. Regardless, I completed it and turned it in only to be completely ghosted. In conclusion: highly unprofessional and a waste of time.