The model does not have damaghed/fractured replacement model BUG

Hello dear devs It's me again ^^

I Run into a bug that is causing Prefab Binding Definition to throw errors :

So this is the steps to show you guys how i created this BUG :

Step 1 -> I copied vanilla models to different folder

Step 2 -> I renamed them to T1_[MODELNAME]

Step 3 -> I edited model file where there was code with bin file localization and changed it

Step 4 -> i placed all model files into mod folder in Editor. Editor created .model file

Step 5 -> i changed one texture on model -> in model previev it was all proper for non-fractured, fractured and deformed

Step 6 -> I made partial copy of files Hydrogen_Thruster.partialdef and HydrogenThrusterBlockModelDefinition.partialdef from vanilla to mod folder

Step 7 -> I changed models in file T1_HydrogenThruster200_HydrogenThrusterBlockModelDefinition to my ones

Step 8 -> Idragged T1_HydrogenThruster200_HydrogenThrusterBlockModelDefinition into T1_Hydrogen_Thruster_Small.partialdef into section **Block Model Component** and errors occured

I have also models for fractured and deformed models already in the mod :

This bug occure with following models :

- O2H2Generator

- Hydrogen Thruster 200

- Hydrogen THruster 250

I found what is causing the error for at least Hydrogen Thruster 250 :

When i change from partial copy of the file :

Into one created by using create->block->breakable->hydrogenthruster :

Then these errors in file HydrogenThrusters250.partialdef (Prefab Binding Definition) vanish

I hope i explained the steps properly