Editor play using Keyboard Shortcut get error occurred "Couldn't call method TogglePlaying because the class Toolbar or method couldn't be found."

Steps to reproduce:
1 Create a new project.
2 Use Keyboard Shortcut (Ctrl + P) OR Select Edit > Play.

Actual Result:
Editor doesn't enter in play mode and error is thrown in console.

Expected Result:
Scene starts playing.

Reproducible in:
2020.1.0a16, 2020.1.0a15.

Working fine in:
2020.1.0a14, 2019.3.0f2

Environment:
Windows 10 & macOS 10.14

Stack Trace:
Couldn't call method TogglePlaying because the class Toolbar or method couldn't be found.
UnityEditor.EditorApplication:Internal_CallGlobalEventHandler()