Changing a weapon set skill point to normal skill point messed up the count

I think that converting weapon set skill point to normal skill point messed up the count on my character.

This is a 2 part story.

I had spend 1 weapon set skill point and latter spent 1 normal skill point on the same node. At first that converted the node to on normal but did not refund the weapon set skill point, but then the account seemed to have corrected itself.

But now I have 1 weapon set skill point that I cannot spend. The game shows that I have 1 weapon set point left, but I can't use it. Also, it seems I have 1 more normal skill point that I should (I have the same number of spend point than my level, but that should be my level -1).

Basically, I have 1 more normal point that I should and 1 less weapon set point that I should, even though the number showed on the top left is correct.
So, it seems I manged to actually convert a weapon set point to a normal point by trying to replace a weapon set point by a normal point.

Edit: Screen capture. Character is level 21, there is 21 yellow nodes, but I don't remember getting a point at level 1.