Hi Aaron - Lou has the right approach here, in theory, but you'll find yourself having to "try try try" using this approach and here's why...
The entire process uses a great number of MicroStation graphics engines as well as legacy GEOPAK code engines. And while this process should be "automatically updating", the reality is that any part of the process can contain a graphical or other error and you'll burn your time chasing and trying to mitigate the error through deletion of individual cells.
Your most economical approach (from a time perspective) is to delete the xs-section DGN file ENTIRELY and redraw the xs-cells into a new DGN file (your safest bet is to use a brand new DGN file created from a known good quality seed file) and it should work every time.
Let me know if questions. This should be covered in our Digital Training Manuals as well.
Thanks,
Dan Calistrat, PE
President
DTM-Solutions
Austin, Texas 78759
O: 512-331-7211