Actually, the problem is that there's a space between his last name and the file suffix.
EDIT: Just discovered 9 more skins that have this same problem. I'll upload a new bat file shortly.
For the record, here's a complete list of all the skins with a space between the last name and the file suffix (I'm assuming they are all bad). Updated bat file attached.
Off_Fokker_DVII_OAW_ace_t_Jasta 75 1918_Walther_Karjus .dds
Off_Fokker_DVII_ace_t_Jasta 56 1918_Dieter_Collin .dds
off_Fokker_DVII_OAW_ace_t_Jasta 2 1918_Hermann_Vallendor .dds
off_Fokker_DVII_OAW_ace_t_Jasta 27 1918_Rudolf_Klimke .dds
Off_Fokker_DVII_OAW_ace_t_Jasta 60 1918_Heinrich_Pfaffenritter .dds
Off_nieuportN11_ace_t_Esc 10 1916_Thieffry .dds
off_Roland_CII_t_Ss-35 1917 .dds
Off_Se5a_ace_t_RFC-1 1917_Harry Alexander_Rigby .dds
Off_Se5a_ace_t_RFC-1 1918_Harry Alexander_Rigby .dds