Vernacular index not created in DAB

When I use DAB to make a new .apk file, the only option I get is to create an index tab for English. See app screenshots - I can still search for words in the vernacular language, but am unable to list the vernacular entries. I’m using ver. 10.1 (latest release) and the .lift file is created with Wesay. I’d be grateful if anyone has experienced a similar problem and can suggest a fix.