Label field extentions with .dxf export

dear community

when exporting a file in any version of dxf, all pattern pieces but one come up with extentions to the description fields. i.e.

Kimono Blouse %&??% Sleeve%&??% 2xOS%&?_?% and so on…

i have used the same label template each time and couldn´t say why in one pattern piece it appears correctly while in the rest it doesn´t…

any ideas? best jan