Now that you mention it though, I notice I forgot to include the UI cards for the First Cohorts. Although those are just renamed Legionary Cohort ones. Go to *\EB\Data\UI\UNIT_INFO\SELEUCID and make copies of "roman_infantry_legionary_cohort_i_INFO.tga" and "roman_infantry_legionary_cohort_ii_INFO.tga", then rename the copies to "roman_infantry_legionary_first_cohort_i_INFO.TGA" and "roman_infantry_legionary_first_cohort_ii_INFO.TGA". Ditto for "#roman_infantry_legionary_cohort_i.TGA" and "#roman_infantry_legionary_cohort_ii.TGA" in *\EB\Data\UI\UNITS\SELEUCID to fix the matter yourself for the time being.