Compile error in 2.8.1.0 Core Source

WEBLib.Grip.pas gets the following compile error.
[Error] WEBLib.Grids.pas(6195): identifier not found "EditorMode"

Had to change to FEditorMode and it really does not seem to be used other than setting it true or false.

I cannot reproduce an issue.
Also, this property is declared in the source, line 414:

property EditorMode: boolean read FEditorMode write FEditorMode;

so, I cannot see any reason for this error to occur.
Do you see this when dropping a new TWebStringGrid in a new application or with the demo that we provide.