atLarge interview questions

This interviewing process was a bit strange. I applied online via LinkedIn and received an email asking for a preferred time to chat. After some back and forth, we decided on a time and I waited for it to come through. It didn't. The employee scheduled me for a day other than what was discussed and agreed upon, which was fine. We changed the time and spoke on the rescheduled day. The call went great, and I was asked to come in and meet some of the team. The group interview was where things began to feel strange. I, wearing a full three-piece suit, met with an employee in sales, marketing, and communications, all of which were wearing jeans and polos (great start). After we exchanged pleasantries, I was informed -- at the interview -- that the position had been updated and that there is a new title and responsibilities associated with the position. I had no time to prepare for the updated position, but we dove right into the interview as planned. I was asked pretty basic questions. They gave me a tour of the office, which used to be a tile factory, and I met some of the employees. The founder was one of those who I met. We had a very awkward encounter. Then, we went back into the "Telsa" room to complete the interview by way of allowing me to ask a few questions. It ended and they said they would be in touch be weeks end. They were not. I missed an unexpected call from the founder, and he refused to accept any of my returned calls. I had to email the team back and forth to get a barring on what was happening. After a week, I received a call from the initial employee who set up the interview informing me that I would not be offered the position "because of the miscommunication of the position and expectations of follow-ups... follow-ups with the clients". I have no idea what that means. Please note: If you are applying for this position, they like oxford commas, and hate when you miss calls. Cool company though. Good Luck!