On starting recording from the Recorder window then it causes the editor to throw InvalidOperationException continuously, refer to the attached video.

Steps to repro:
1. Create a new project with HDRP Template
2. Window > Package Manager > Recorder > Install
3. Window > General > Recorder > Recorder Window
4. Add Recorder in the List > Image Sequence
5. Strat Recording

Actual Result:
InvalidOperationException is thrown continuously on Starting Recording

Expected Result:
No exception thrown in the console

Reproducible in:
2021.2.0a17 with package version 3.0.0-pre.1

Working fine in:
2021.2.0a16, 2021.1.5f1 with package version 2.5.5

Environment:
Occurring on Windows 10 & macOS 10.15.

Stack trace:
InvalidOperationException: You are trying to read Input using the UnityEngine.Input class, but you have switched active Input handling to Input System package in Player Settings.
UnityEngine.Input.get_mousePosition () (at <04e62a56ff8e43d3a6c029b89bb68d28>:0)
UnityEngine.UI.MultipleDisplayUtilities.GetMousePositionRelativeToMainDisplayResolution () (at Library/PackageCache/com.unity.ugui@1.0.0/Runtime/UI/Core/MultipleDisplayUtilities.cs:40)
UnityEngine.EventSystems.BaseInput.get_mousePosition () (at Library/PackageCache/com.unity.ugui@1.0.0/Runtime/EventSystem/InputModules/BaseInput.cs:75)
UnityEngine.EventSystems.StandaloneInputModule.UpdateModule () (at Library/PackageCache/com.unity.ugui@1.0.0/Runtime/EventSystem/InputModules/StandaloneInputModule.cs:178)
UnityEngine.EventSystems.EventSystem.TickModules () (at Library/PackageCache/com.unity.ugui@1.0.0/Runtime/EventSystem/EventSystem.cs:452)
UnityEngine.EventSystems.EventSystem.Update () (at Library/PackageCache/com.unity.ugui@1.0.0/Runtime/EventSystem/EventSystem.cs:467)

InvalidOperationException: You are trying to read Input using the UnityEngine.Input class, but you have switched active Input handling to Input System package in Player Settings.
UnityEngine.EventSystems.BaseInput.GetButtonDown (System.String buttonName) (at Library/PackageCache/com.unity.ugui@1.0.0/Runtime/EventSystem/InputModules/BaseInput.cs:126)
UnityEngine.EventSystems.StandaloneInputModule.ShouldActivateModule () (at Library/PackageCache/com.unity.ugui@1.0.0/Runtime/EventSystem/InputModules/StandaloneInputModule.cs:227)
UnityEngine.EventSystems.EventSystem.Update () (at Library/PackageCache/com.unity.ugui@1.0.0/Runtime/EventSystem/EventSystem.cs:474)