Steps to reproduce:
1. Create new Unity project using Universal 3D Template
2. Open Package Manager window
3. Find and install the Entities, Entities Graphics and Unity Physics packages
4. ~~In Hierarchy window create Cube GameObject (not necessary)~~
5. Enter Play Mode
6. In Hierarchy window expand Default World foldout and select “MostRecentFixedTime” GameObject
7. In Inspector window > Dynamic Buffer Container<Most Recent Fixed Time> expand “Buffer” foldout
8. Press on an “x” on “Element 0”
9. Observe the Console window

Actual results: “IndexOutOfRangeException” errors are spammed in the Console window

Expected results: No errors are spammed in the Console window

Reproducible with versions: 6000.5.2f1, 6000.6.0b2, 6000.7.0a1

Can’t test with versions: 6000.4.12f1 and lower (No Default World GameObject available in the Hierarchy window)

Tested on (OS): macOS Tahoe 26.5.1 (M1)

IndexOutOfRangeException: System.IndexOutOfRangeException: Index 0 is out of range in DynamicBuffer of '0' Length.
This Exception was thrown from a function compiled with Burst, which has limited exception support.
 #3 Unity.Entities.DynamicBuffer`1[[Unity.Physics.GraphicsIntegration.MostRecentFixedTime, Unity.Physics, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null]], Unity.Entities, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null.CheckBounds(Unity.Entities.DynamicBuffer`1[[Unity.Physics.GraphicsIntegration.MostRecentFixedTime, Unity.Physics, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null]]*, Unity.Entities, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null this, System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 index) -> System.Void, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089_71d3a81f4d258f003cdd73e3aaaa27be from Unity.Entities, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null
 #4 Unity.Physics.GraphicsIntegration.RecordMostRecentFixedTime, Unity.Physics, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null.OnUpdate(Unity.Physics.GraphicsIntegration.RecordMostRecentFixedTime*, Unity.Physics, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null this, Unity.Entities.SystemState&, Unity.Entities, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null state) -> System.Void, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089_5b38dd9a217e336245129d125379f073 from Unity.Physics, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null
 #5 84d49d9dc9bb96e5d7b7db60b74938a2
 #6 Unity.Entities.WorldUnmanagedImpl+UnmanagedUpdate_000015A0$BurstDirectCall, Unity.Entities, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null.Invoke(System.Void*, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 pSystemState) -> System.Void, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089_71d3a81f4d258f003cdd73e3aaaa27be from Unity.Entities, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null
 #7 7bf3b3dc1c88cb657fd69b548232391d
 #8  (Mono JIT Code) (wrapper managed-to-native) Unity.Entities.WorldUnmanagedImpl/Unity.Entities.UnmanagedUpdate_000015A0$BurstDirectCall:wrapper_native_indirect_0x998cbdad0 (intptr&,void*)
 #9  (Mono JIT Code) Unity.Entities.WorldUnmanagedImpl/Unity.Entities.UnmanagedUpdate_000015A0$BurstDirectCall:Invoke (void*)
 #10  (Mono JIT Code) Unity.Entities.WorldUnmanagedImpl:UnmanagedUpdate (void*)