That seems strange...
However I would still investigate the scale of both drawings.
Do you use the publisher to save PDF's or do you print to a file? If the latter, then make sure you use the native scale of the view (both the view and trace reference should use the same scale). If you change the scale during the print make sure to check "same height" for text and markers (as in the screen below - sorry for the PL version).
Perhaps I'm mistaken and I'm going in the wrong direction here, but this would be my starting point to troubleshoot this situation.
Łukasz Pietraszko
ArchiCAD 26 PL, since AC20 | WIN 10 Home
Intel Core i7-7700HQ 2.8 GHz | 16 GB RAM | NVIDIA GeForce GTX 1060 6 GB | 500 GB SSD