ID 375575 - The Modo UI is covered in a grey colour when using shortcuts to open Pie Menus while the Open Pies Immediately option is disabled

Problem summary
The Modo UI is entirely covered in a grey colour when using the shortcut "CTRL" + any key to open the Pie Menus while the "Open Pies Immediately" option disabled. The problem disappears when left-clicking with the mouse together with the keyboard combination to open the Pies Menus. 

Customer reported version
Modo 12.2v1 

Customer reported platform
Windows 10 

Steps to reproduce

1) Open Modo. 

2) Go to System -> Input -> Remapping. Disable the "Open Pies Immediately" option. 

3) Enter a shortcut key combination to open any Pie Menus. For example, use "CTRL" + "Spacebar" to open the Pie Menu to change views. 

4) The Modo UI is now covered in a grey colour and the issue disappears when left-clicking the mouse together with the keyboard combination. 

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Workaround
The problem is not appearing when the "Open Pies Immediately" option is enabled. 

Reproduced by support

This bug has been reproduced in:
Modo 12.2v1 - Windows 10 - CentOS 7 - MacOSX 11.13  

Modo 12.1v2 - Windows 10

Modo 12.1v1 - Windows 10

Modo 12.0v1 - Windows 10

Modo 11.2v3 - Windows 10 

Modo 11.1v1 - Windows 10

Modo 11.0v3 - Windows 10

Modo 10.2v4 - Windows 10 - CentOS 7 - MacOSX 11.13 

Earliest version tested
Modo 10.2v4 - This issue appears to be in all versions of the product.

Expected behaviour
The Modo UI should not be covered in a grey colour when opening Pie Menus with the "Open Pies Immediately" option is disabled. 

Actual behaviour
Modo is entirely covered in a grey colour before Pie Menus are opened.