I assume that the long bolt has been removed completely, if not remove it and set it aside. Bounce the frame, can you hear the wedge nut bouncing around inside the head tube if not it may be frozen on the stem.
I would remove the wheel and the front brake, flip it over and take a look in there to see if the wedge bolt is loose if not it is still hung up inside of the fork tube and that may be where it may be binding.
You say it will rotate and move, without using a lot of force (not want to force it) will it move "down"? I add more lubricant from "below and then try moving it up and down.
Take your time this is a mechanical obstruction, not brain surgery.
Good Luck, Ben
rereading the thread [MENTION=9425]madpogue[/MENTION] already made similar comments
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Last edited by xiaoman1; 09-21-22 at 02:43 PM.