The only problem I have with pro 5.1 is that
when I draw a dimension the text is located where I select. but when I use the update command on that dimensionthe text jumps to the end of the dimension line. and cannot be moved back with text move. the only way I can get the text back to the center is to delete the dimension and re enter it.

I have corrected this problem by clicking on "restore defaults" in the dimension box

I have found the culprit with dimensions not behaving when bringing AutoCAD files into Intellicad.
If the vaiable dimupt is set to "on" in the autocad file the dimensions will not update correctly, the solution is to turn dimupt to "off", update all the dimensions, then the dimensions will update correctly.