The layouts "Caption" and "Labeling" are both translated to "Beschriftung". That makes it impossible to insert a caption in KOMA classes (qt frontend), because "Labeling" is always used. I never used labeling and don't know how to translate it, but we must find something different :-) This is 1.3 only, "Labeling" is untranslated in 1.4.
In the long run it would be nice to have code that finds errors like that... Georg