Saving to dwg format generates a line offset

Hello,
I'm having trouble saving DGN files to DWG.
After saving, the lines in the DWG file are shifted a few cm in the plan (1,5cm) and in the profile (4,8cm).
I can check it by ataching DWG file to my DGN later.


My colleague does not have this problem, we cannot find a rule in this shift.

We both using PowerRailTrack V8i SS2. Lines are generated from Roadway Designer