Complex Geometry - Phantom Lines

Good Morning,

I have been creating horizontal alignments with profiles for driveway grading. While I am working in the project all the horizontal alignments are in the correct location with no issues. However, if anybody else opens the file all the horizontal lines get moved completely as shown in the pictures below. Has anyone run into this issue before? How does one go about fixing this so it does not happen?

How it is originally designed (above)

How they come in after someone opens it (above)