Ware interview questions

I was encouraged to apply at Ware. I did so, and met many of their staff. I was given a front end project. I completed the project per the spec. Met with the UX designer and had great conversations with most everyone I had talked to. I was told they were excited to hire me. I was also told they were putting together a job offer for me for the position. Then, the CTO met with me. His interview made 0 sense. He was a very strange dude. None of his questions made sense at all, and he kept changing them throughout the interview. The CTO interview went something like this. He made me do a blank whiteboard interview. Told me to completely architect the data structure for a 3d object rendered in space. How would a 3d object be structured and stored in a database. First, the object existed completely in the air, then he changed it so that I could "assume the object was from the floor to the ceiling". Wtf?? The CTO was a very odd duck. I had asked in my previous 6 interviews with the other staff members about the data structures of 3d objects mapped in space. They said I would not be working with or dealing with the nature of data structures and algorithms as this position was for a front end engineer. Okay, but the CTO was a million miles away from the other 10 people in the company. Not even close to being on the same page in any respect to the rest of the employees.