The print area does not correspond with the extent of the export in the Map Viewer after adjusting the DPI (dots per inch) when the ‘Set scale’ option is enabled in ArcGIS Enterprise 11.4.

Workaround

Set the extent of the print area to the desired extent while the DPI (dots per inch) is still on 96. Then change the DPI (dots per inch) to the desired DPI (dots per inch) . Ignore the fact that the extent box became larger. When exporting the map, the extent is correct. Export the map and subsequently revert the DPI (dots per inch) back to 96 to choose a new area. This ensures the user will be able to correctly aim their print preview for the first and subsequential exports. 

Steps to Reproduce