Akira Kibo has gone nuts and is non-stop cooking on a grill

Some objects are "stickier" than others, and sims will prefer using them if autonomy settings allow it. Club behaviors and lot traits can force certain behaviors too. For example, the Homey lot trait will cause sims to repeatedly queue up objects on the woodworking bench. These behaviors tend to be more annoying than game breaking. Some mods will suppress annoying behaviors. Changing the traits or other settings can help sometimes too.