Self-sabotage
As we should with any problem, let's look at our responsibility for the current situation. If you know that your manager is not driving your development and you have not taken deliberate action to put together a plan for your own growth then you are complicit in causing the stagnation of your own career.
Is that fair? Maybe not, but the fairness of the situation does not change the fact that you are not seeing the improvements in your professional and skill development that you want. When you see something in your life you do not like, look in the mirror and ask how you could be contributing. There's little benefit in sugar-coating the truth.
And, once you come to terms with the fact that you are responsible for your own lack of career growth, this realization is incredibly empowering. You have everything you need to get to where you want to be. All that's needed is a good plan and steady focus.