OpenNewTab stopped working on IE after unknown windows update

[M851533]

Hi,

I use HP UFT v14 and windows 7 64 bit OS. After some unknown windows patch my "OpenNewTab" does not open a new tab anymore. I suspect windows update has reset some IE settings, but I'm not 100% sure. Any help is appreciated

P.S. - It was a working code before windows update and OpenNewTab could open new tab successfully then

Code snippet:

SystemUtil.Run "iexplore.exe" , uac_url 
With Browser("XYZ")
    With .Page("XYZ")
        .WebEdit("username").Set uac_username
        .WebEdit("password").SetSecure uac_pass
        .WebButton("Sign In").Click
    End With
    .OpenNewTab 'This line executes without error but no action seen on IE

End With

'Open portal URL in second tab of IE
With Browser("CreationTime:=1")
    .Sync
    .Navigate portal_url
End With

Thanks,
M851533