NaN values in Z - scores Four Taxon Tets

[BLabiszak]

I'm using for taxon test on set of 5 species represented by different number of sequences. I've specifed populations and popCombs accordingly to manual and I'm running the analysis with these comands:

MyAnalysis$prepareFourTaxonTests(taxa = popCombos)
MyAnalysis$runFourTaxonTests(numberOfBlocks = 10L )
fttResults <- MyAnalysis$tabulateFourTaxonTests(selections = "ALL" , neat = T, global = T)

But in results I got only NaN values for: D_jSD, Fd_1DD4_jSD, Fd_D2D4_jSD, D_jZ, Fd_1DD4_jZ, Fd_D2D4_jZ.
Am I doing somthing wrong?