When you try to print by using a printer driver that use non-square pixel resolutions, Windows may not print correctly. These printers don't have the same resolution in horizontal and vertical direction.
The graphical objects in the label will print in the incorrect size.
The problem appears in Windows 8.1 and Windows Server 2012 R2.
Microsoft has identified the problem in their software.
To resolve these issues, install Windows update rollup 2911106. For more information how to obtain and apply this update rollup package, check Microsoft KB article.
For more information open the Microsoft Support article 2914011: Update resolves a Windows Store app issue and a printer issue.