X y and n are usually placeholders for the numbers you want there and they need to be replaced by the numbers that are correct for your game before the notetags can work.
And any notetag missing its data can cause the entire notetags to abort.
So please replace all placeholders with the correct entries and then check again.
The next JABS update will include ally AI and an aggro system.
What would YOU expect to happen if you had four+ party members in an ABS, all fighting either together or separately or a mix of the two, and the player hits "swap leader" button?
It currently pulls all followers to the player's location, removes all aggro towards enemies, and swaps them.