problem

A XLF trans-unit with translate="no" and a different amount of mrk segments in source and target lead to the misleading error:

editor_Models_Import_FileParser_Xlf_Exception: E1195 - A trans-unit of file "iuiSMALL-de-es.xliff" contains MRK tags other than type=seg, which are currently not supported!

reason

This is an implementation error, since for translate=no segment it may happen that seg-source is segmented and target not. This is determined by comparing the node count in source and target - and since this is different in this case translate5 tries to import the whole target - including the mrk tags in the content triggering that error then.