SolAmerica Energy interview questions

Company reached out and we scheduled a phone interview, however it was a no show on their end -- they completely forgot about the scheduled interview. I reached out and we were able to connect later that day. After a 15 min conversation, I was told that I was being put on the Hiring Manager's calendar for next week and they would follow up with details. We even went over potential times while on the phone and it was "added" to the calendar. Never received any other communication from this company, I was completely ghosted, even after trying to follow-up for the details of the interview. I've never encountered this in my career. Bizarre and unprofessional behavior -- I'd stay away from this place.