How to reproduce:
1. Create a new Unity project and install the Multiplayer Services package
2. In the Project window, right-click -> Create -> Services -> Matchmaker Environment Config
3. In the Unity toolbar, go to Services -> Deployment
4. In the Project window, rename the Matchmaker Environment Config
5. Observe the results
Expected results: The Asset is not duplicated in the Deployment window
Actual results: The Asset is duplicated each time in the Deployment creating the infinite amount of ghost elements and throwing the error each time
Reproducible with: 2.2.3 (6000.4.12f1, 6000.5.0b11, 6000.6.0a7)
Reproducible on: macOS Tahoe 26 (M1)
Not reproducible on: No other environment tested
First lines of error:
ArgumentException: An item with the same key has already been added. Key: Assets/jbdjbsjds.mme
System.Collections.Generic.Dictionary`2[TKey,TValue].TryInsert (TKey key, TValue value, System.Collections.Generic.InsertionBehavior behavior) (at <b3de1de343a349299daf7e70e6f0b89b>:0)
System.Collections.Generic.Dictionary`2[TKey,TValue].Add (TKey key, TValue value) (at <b3de1de343a349299daf7e70e6f0b89b>:0)