I became the lead designer, which sounded like the dream. Now my days are meetings, deadlines, and keeping everyone's vision pointed the same way, and I almost never get to actually design a system myself anymore. I got into games to build the things, and now I mostly manage other people building the things I wish I were making.
More people experience this than they realize.
You became lead designer and stopped getting to design.
If this sounds familiar, the Library can help you find the bigger picture.