I have a survey file created with Power InRoads SS2 which when opened in SS4 initially looks fine. However if I do a fit all it turns into artifacts spread across the design plane. If I re-open the file with SS4 again it will go back to normal. If I open the same file with Power InRoads SS2 and fit all it fits the elements as expected. I can fix it by referencing the file into a clean dgn and copying all the elements to the clean file, but I would rather figure out what the cause is.
Here is a scree capture right after opening.
This is after a fit.
This is zoomed into one of the artifacts.
