Soluna interview questions

I received an email and a follow-up call from HR confirming the schedule for a 30-minute first-round interview with the owner. I chose to do the interview in person, and we ended up chatting for around 45 minutes. At the end of the interview, the owner gave me his number and said he would contact me in two days. Two days later, the owner asked me to submit a design task, which had never been mentioned before or during the interview. I had even inquired about the hiring process during our conversation, and the design task was not brought up. After submitting the task, I sent follow-up messages, but the owner has since ghosted me.