What would you do?

I’ve been with a well known CPG for 14-15 years. I’d moved up and up in the first 9 years from entry level to Associate Director (7 levels up). However I’ve been at the same level for 5 years in 3 slightly different roles with expanded responsibility. We went through some restructuring. They value my talent and experience, but not enough to promote me to Director level? I have a big team and deliver good results. I’ve asked my TL what my improvement opportunities are to work on so I’ll be ready for Director level. She can’t really tell me. I don’t know if she really doesn’t know or just being nice. Or there’s very limited opportunity right now. Just a bit frustrated. Have you experienced this? What did you do to make a difference?