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Fixed in 2020.2.X

Fixed in 2019.3.X, 2020.1.X



Found in





Issue ID




No debug information for NativeArray<T> objects available when debugging IL2CPP builds



Steps to reproduce:
1. Open the attached project (
2. Build the project as Standalone with Scripting Backend set to IL2CPP and "Development Build", "Script Debugging" and "Wait for Managed Debugger" checked
3. Open Script.cs and put a breakpoint on line 19
4. Run the executable
5. In Visual Studio, attach a Managed Debugger (Debug -> Attach Unity Debugger)
6. Click OK in the popup box for debugging to continue
7. Wait for the breakpoint to be hit
8. Mouse over the "array" variable in Visual Studio

Expected result: NativeArray<T> objects can be inspected (length and other property information available)
Actual result: NativeArray<T> objects cannot be inspected - not even a popup box is given

Reproduced in: 2018.4.17f1, 2019.2.20f1, 2019.3.1f1, 2020.1.0a22
Cannot test with: 2017.4.36f1 (No IL2CPP)

- The bug is only present in IL2CPP builds - Mono builds do not reproduce the issue

  1. Resolution Note (fix version 2020.2):

    Fixed in 2020.2.0a3

  2. Resolution Note (fix version 2020.1):

    Fixed in 2020.1.0b8:
    Allow inspection of NativeArray objects in the debugger

  3. Resolution Note (fix version 2019.3):

    Fixed in 2019.3.13f1

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