After listening to this fragment a dozen of times and looking at the spectrogram of "has harmed her":
I am still not quite sure what I am hearing/seeing. The place on the spectrogram, where I thought I was hearing the voiceless consonant is marked with an arrow. There is, indeed, no sound there. The burst produced by the plosive d/t consonant is likely the thin vertical band to the left of the arrow (the horizontal band in the bottom, to the left of the arrow is an /m/). But then there is a vertical band to the right of the arrow, definitely voiced, which might actually be the /d/ which I took for /t/.
The other beautiful thing, of course, is how she does not pronounce the /r/ in harm. That’s the British norm that I haven’t payed close attention to.