ktGetTaxInfo output empty result when taxonomy.tab exist the record

[JamesYang1209]

Hi, I have checked that my taxonomy.tab exist this TaxID record.

grep 3240 taxonomy.tab
3240    14  3239    species Psilotum nudum

But when I use ktGetTaxInfo, it report an empty result.

ktGetTaxInfo 3240
#taxID  depth   parent  rank    name
3240

Is that normal ?

I am using v2.7.1 Thank you.