IHS Markit interview questions

It started off with an initial phone interview. I met with an engineer. Had some behavioral questions along with technical questions, but nothing too hard. I then was sent a take home assignment to do. I did the assignment, and they acknowledged my email when I sent it back. After that, I was COMPLETELY ghosted. I even followed up after two weeks, and got NO response. Very unprofessional! I took the time out of my busy schedule to do the assignment, but you can't even give me the curtesy to say you are going to pass and move on to other candidates? And completely ignored my email? Ridiculous. Apparently, this is common practice for them. I was talking to another engineer, and he said they ghosted him as well after a few interviews. Shameful!