Export problem - insert vertical yellow line and it becomes two

Document ID : KB000098370
Last Modified Date : 01/08/2018
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When using Windows 10 to do an export, as you click and insert vertical yellow lines, and as you scroll, additional lines may appear.  This can happen with wide reports.
MS Windows 10
IE11 version for Windows 10
IE11 has been modified for Windows 10
SO04359 CUMULATIVE BUILD 189 FOR WEB VIEWER 12.1 contains an update for export on the Windows 10 platform

Additional Information:
Note: An additional build will be coming for another problem with export with some Windows 10 versions.  In some cases the exported report does not automatically open in EXCEL.  See  KB000100239  Export issues with MS Windows 10 and Web Viewer