When in Simulator window Control Panel is open, On installing Adaptive Performance Package 'NullReferenceException' and 'ArgumentException' thrown in console. Refer attached video and StackTrace.

Step to reproduce:
1. Create a new project
2. Game View > Switch Game To Simulator
3. Select any Device > Control Panel
4. Package Manager > Install 'Adaptive Performance' Package.

Actual Result:
Errors are thrown on installing 'Adaptive Performance' Package when Simulator window is open.

Expected Result:
'Adaptive Performance' Package should install without throwing any error in console.

Reproducible in:
2021.1.0a8, 2021.1.0a7. with Package Version Version 2.1.0.

Note:
1] Device Simulator windows as a core feature of the Editor introduced in 2021.1.0a3.
2] Control Panel in Device Simulator window introduced in 2021.1.0a7.

Environment:
Occurring on Windows 10 & macOS 10.15