Reports build in ORD (or Report Canvas for Report Center) show up fine in English, but once you change to a local language, only some, but not all of the fields are translated correct.
Reproducing the Issue
Build a report as Report Canvas (or Analytics, if you do not use Report Center) while the language selected in "Options" is English.
Switch to another language installed and review the report
If you find a mix of translated and none translated fields, proceed to the next section
Verify if translation for affected fields are in place
Verify the default language in Provisioning
Make sure there are translations for all fields you want to report on.
Set the default language to the local causing the issues in provisioning -> company settings
Report local missing, data not translated , KBA , LOD-SF-ANA-ORD , Online Report Designer , Problem