The mouse click function is not workings on some areas (e.g. Grid Area and top menu) but works on others (e.g. menu tree, right-click menu).
Reason:
The TeamViewer's QuickConnect button is conflicted with HRPro.
Solution:
In TeamViewer, top menu, Extras->Options->Advanced, Show advanced options. Quick Connect button, click Configure... button. Uncheck Show QuickConnect button.
Alternatively, right click the teamviewer icon at the taskbar and select Toggle QuickConnection button.