Unmotivated and bored at work

I feel unmotivated and bored at work. I have been with current company for 5+ years and recently promoted to Principal PM. Previously, I managed a team as being a L6 manager. I enjoyed the role and was there for more than 2 years. Due to a policy change and a reorg, I became an IC. I did not like it so moved to a new team. In my current role, I have a lot of flexibility to manage my schedule. However, the work does not excite me as I have done similar scope work many times already. I do not have much authority and no exposure to VP level leadership. most of my time is spent on writing documents (updates, MBR, user stories, business cases, etc), data analysis, and meetings with engineering teams. Though I have been promoted, I am still making same money as I was making as L6. Only small increase in base that is not noticeable on paychecks. I may get new RSU grant part of annual performance review cycle. Sometime I think that I should change team and get into manager role. But changing team may not give me much financial benefit. Also, getting L7 manager role might be challanging as I am an IC currently. Recently, I got a job offer from a Start Up with 25% cash pay increase (stock options excluded) but I turned the offer down. I thought that I will loose WLB (schedule flexibility) and also Start up might be risky as I am on H1B visa. I have a young family where I need flexibility in my work schedule. My current job provides me that but I feel unmotivated and unhappy in the job. Am I taking my current job for granted? If changing job may bring excitement, should I look for internal opportunities or look for job out side? Any advice in general? Thank you for your inputs!! TC: 245K