I left my last company when I realized the promotion I was promised when lured over to a new team was never going to materialize. I wanted to make a jump to man

I left my last company when I realized the promotion I was promised when lured over to a new team was never going to materialize. I wanted to make a jump to management after spending many years as a principal engineer. A director from another group approached me and promised to promote me if I joined his group. I did. He talked about all the new responsibilities I was going to have an the team members who would report to me, but before he was going to announce it, I just needed to deliver this one thing first. So I did. Then it was another thing. Then he encouraged me to setup 1:1 meeting with my future direct reports. So I did. He however, didn't stop meeting with them directly himself. They were totally confused as to what the heck I was doing and what exactly they were supposed to do with my meetings. He encouraged me to do sprint planning and work with my future direct reports to estimate stories and execute. Meanwhile, he gave them completely different direction in his own meetings. Soon, no one cared who I was, what I said or whatever was agreed in the sprint planning meetings. That's when he concluded he probably couldn't promote me since I didn't have the teams support and that I probably should just focus on delivery. Yeah...so that's when I quit.