Bar Scale always equals viewport scale x 12
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I am using AutoCAD Civil 3D 2018.
I have a drawing in feet. In the paper space I have a viewport where 1"=100'. When I go to bring in a scale it comes in smaller then it should by a factor of 12. My drawing has a scale of 1:1200 but the scale ratio of the scale bar is 1:14400. In order to make everything display right I have to multiply my divisions by 12. Then once the scale bar is in place I can manually correct the numbers. This would be ok, except that anytime I touch the viewport (to move it, clip it, etc.) the scale bar "fixes" its self causing it to show 1"=1200 feet instead of 1"=100 feet. if I select the scale bar and the viewport autocad recognizes that the scales are not the same with a little blue box that states "Viewport scale is not equal to annotation scale" clicking on the box is supposed to synchronize them but this does nothing. Changing the scale ratio on the scale bar properties causes my drawing to resize.
I have checked the scale bar and confirmed that it is off by a factor of 12. I can draw a line in model space that is 100 feet long. I've even measured it to make sure the line that's been drawn is 100 feet and not 100 inches. The measuring tool tells me it is 100'-0". I then can trace this line in paper space. If I then move it and measure the traced line the measuring tool tells me it is 0'-1" in length. I then create a scale bar with a division of 1200 Feet. Placing the 1" line(traced from the 100 foot drawn line) on the zero mark on the bar causes it to fall on the 1st division marked 1200 feet.
I can work around the problem by creating a false viewport(attaching the drawing scale to a viewport that exists outside of the print area instead of the one it's supposed to be associated with) or by manually altering the numbers so they are correct but it would be preferable that the scale bar worked correctly. I don't know if it makes a difference or not but even though my drawing is in feet. When I select one of the imperial scale bars the units seem to default to meters. Everything I've described happens regardless if i pick an imperial or metric scale bar.