Getting Index Error in Editor when selecting objects

Unity Engine
1 
ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
System.Collections.Generic.List`1[T].get_Item (System.Int32 index) (at <dc753a1061284f8e971ee88ee4826eee>:0)
UnityEngine.UIElements.VisualElement+Hierarchy.get_Item (System.Int32 key) (at <f67debe1efd242948106f1922bfac1c7>:0)
UnityEngine.UIElements.VisualElement.get_Item (System.Int32 key) (at <f67debe1efd242948106f1922bfac1c7>:0)
UnityEngine.UIElements.VisualElement.ElementAt (System.Int32 index) (at <f67debe1efd242948106f1922bfac1c7>:0)
UnityEditor.EditorElementUpdater.CreateInspectorElementsForViewport (UnityEngine.UIElements.ScrollView viewport, UnityEngine.UIElements.VisualElement contentContainer) (at <5d5ebefe97114215928ac1d9cd096522>:0)
UnityEditor.PropertyEditor.RebuildContentsContainers () (at <5d5ebefe97114215928ac1d9cd096522>:0)
UnityEditor.InspectorWindow.RedrawFromNative () (at <5d5ebefe97114215928ac1d9cd096522>:0)

That’s the error. I created some custom Objects, imported them and added the mesh to an empty object and the rest needed like materials. Everything like usual. Now with newer Models i reached a large amount of objects in my Scene. I have basically one Scene called Prefabs more or less where i create the prefabs so i’ve split testing stuff from actual levels.

Now what happened recently with newer models added in i have some that gave me an error when i select multiple ones and kinda specific ones. It hard to describe cause sometimes the error appears but when selecting in a different order it kinda doesn’t.

When Restarting the editor it doesn’t appear till i hit play. I can run the game without errors but after that when i again select specific objects i get the error in the editor again. And there are no scripts attached to those or anything. Still can play as well.

Should i just create another scene to do my future prefabs bc unity is simply overwhelmed with the amount of objects or is there a deeper problem i need to fix for future prevention? Cause i can’t even figure out what the problem is or if it’s just a bug from unity themselves. (My prefabs folder has 362 files /2 and -15 folders that would be around 166 prefabs. So i have round about 200 objects in my scene i guess).

Any Help appreciated, i’m using Unity 2022.3.20f1 editor.