71 Blazer Door windows Question

[BlazerBoy]

I am in the works of restoring my Blazer very slowly haha and was wondering whats up with the roll up windows ? I apologize for not having pics at the moment but i will try to enplane what i am talking about and post pics later. I am not ise if this is a normal "Common" issue or specific to me.

Both of my windows roll up and down fine and i just got new seals for the doors and window for better closure but even with the seals on both sides i have about 1/2 inch gap to fit the seal properly and about 1/8 inch away from the seal all together. Both windows are the same and simply will not roll up anymore in fact i don't believe the window can go up any further anyways since there is the black window stopper at the top of the door. So my question am i missing something ? is there a piece or gap filler i am missing? I hope someone knows what i am talking about and may be able to offer a solution to my issue.

Thank you all in advance.