The Equip Unequip item ability is responsible for actually doing the item equip or unequip. When any other equip item ability are activated the actual . . .
Thanks that set me in the right direction. It truned out that I need to chnange lots of setttings in the Character controller and animation controller to get the trident and underwater gun worksing. As some of the settings don't copy over correctly. Especially the settings for the animnation controller for the trident and the underwater gun, which change their settings to random ones for some reason when you copy and paste them over.