why abillities positions are changed?

[Jimaras5690]

some abillities of my heroes change positions for example the ulti of my hero is based on a Second position skill as a result when I pick that abillity it take second position skill and not Last Postition.

 

[muzzel]

http://world-editor-tutorials.thehelper.net/cat_usersubmit.php?view=48088