How to reproduce:
1. Open the “IndexOutOfRangeExceptionIssue” project
2. Open the “Assets/ObjectCreation/Scene/FrontEndServerClient.unity” scene
3. If prompted import TMP Essentials
4. Make sure the Entities Hierarchy window is open (Window > Entities > Hierarchy)
5. Enter Play Mode
6. Select the “Server & Client” button
7. Observe the Console

Expected result: No errors are thrown
Actual result: Multiple “System.IndexOutOfRangeException: Index 45 is out of range in container of '45' Length.” errors are thrown

Reproduced with: 1.0.16 (2022.3.19f1)
Not reproduced with: 1.2.0-pre.6 (2023.3.0b6)
Fixed in: 1.1.0-exp.1 (2023.3.0b6)

Reproduced on: Windows 11
Not reproduced on: No other environment tested

Note: The full “System.IndexOutOfRangeException: Index 45 is out of range in container of '45' Length.” error is provided in the internal comments