Import Trouble

[fdmusic]

I have sampled chords from my guitar... C,C#,D,D#,E,F,F#,G,G#,A,A# (all major). I have two samples per chord: an up stroke and a down stroke. I have the samples named like so:

"HB c1 v64.wav"
"HB c1 v127.wav"
"HB c#1 v64.wav"
"HB c#1 v127.wav"
"HB d1 v64.wav"
"HB d1 v127.wav"
"HB d#1 v64.wav"
"HB d#1 v127.wav"
etc...

the v64 velocities are up strokes, v127 are down strokes.

When I import them into SampleTank 2, I import the entire folded. I leave the "Root Note From" set to "Name" and I change "Velocity From Name" to "On". When I import, only the "HB c1 v64.wav", "HB c1 v127.wav", "HB g1 v64.wav", and "HB g1 v127.wav" are imported, with the proper velocity split. So, the "HB d1 v64.wav" is not imported to the D1 note. Instead, the "HB c1 v64.wav" is resampled when I trigger D1, D#1, E, F, F#....

If I import the v127 samples only, then each sample is correctly set to the correct note. What do I need to do to get all samples working with the velocity split?

Thanks for any suggestions!