I haven't experienced this problem, to the best of my knowledge. (I don't actually own a K1, K2, or early model K3; I rely on the "Kindle" emulation in Kindle Previewer.)
My "no indent" paragraph style is actually called "first," and this is the style:
p.first {
margin-top:0.5em;
margin-bottom: 0.0em;
text-indent:0.0em;
text-align:justify;
}
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