Tested with bow and sword switching, how to replicate:

• Spawn in and equip your warrior with some gears and a bow with some arrows
• Have it on Wander area and offense mode so it can attack mobs
• Click on its GUI when it is attacking, and switch out the bow for a sword, and the skeleton will do nothing and just standstill

Forge is no longer being supported, and the mod is getting a total rewrite for Fabric. Here's why.