a bunch of my custom items are not working correctly anymore.
Optics, Weapons and many more. But not every item.

The comon factor that i found is that the items, that i inherit from vanilla items are still working. A few examples for working ones are:
- a custom knife that inherits from CombatKnife
- a custom katana that inherits from Machete
- A custom Army Pan that inherits from FryingPan
- a custom FAL that inherits from FAL_Base

A few example for broken items are:
- a custom Weapon SVT which inherits from RifleBoltLock_Base
- a custom Optic M68 which inherits from ItemOptics_Base
- a custom Tackle Box which inherits from Container_Base but uses the Tire Repair Kit model

The pattern is clear. Items that i inherit from vanilla entities that already have an animation set are working.
Items that in inherit from a more basic class that do not come with an already inherited set of animations are not.

That leads me to believe that ModItemRegisterCallbacks is broken and needs desperately fixing.

just regular modding.
example config and script: (and yes i know they are not complete. just including the essentials)
I packed it with an up to date mikeros tools.

class CfgVehicles
{
	class Container_Base;
	class IZ_TackleBox_ColorBase: Container_Base
	{
		scope=2;
		model="\dz\vehicles\parts\Tire_Repair_Kit.p3d";
	};
};

modded class ModItemRegisterCallbacks
{
	override void RegisterOneHanded(DayZPlayerType pType, DayzPlayerItemBehaviorCfg pBehavior)
	{
		super.RegisterOneHanded(pType, pBehavior);
		pType.AddItemInHandsProfileIK("IZ_TackleBox_ColorBase","dz/anims/workspaces/player/player_main/player_main_1h.asi", pBehavior, "dz/anims/anm/player/ik/gear/TireRepairKit.anm");
		
	}
}

Expected result would be my items behaving and being hold by character like in 1.29