Shapes wav making pffft noise only?

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Hello, whenever I try to listen/sample any wav in the My Samples/shapes folder, it only makes a pfffft type noise - no sample sound.

I reinstalled the program but it's still doing it.

All of the other folders/samples work fine. Any input?

Thanks...jj
lmms version?
OS?
does those wave-files replay normally in other applications?
@ dllbarnone . the shapes are designed to be played as a constant loop within the AudioFileprocessor as they are just a small sample of a few msecs. to achieve this just click on the icon/button "Loop sample at start-end point" ;)
Yes, these are single-cycle waveforms (sin, square, tri, saw...)

If you ever want more, Adventure Kid is a great site :D