I took a look at the ePub.
It opens in Sigil fine and there isn't anything that looks to be obvious "wrong", however, I did raise an eyebrow or three at the nested <DIV> tags on each of the main text pages:
Code: Select all<body class="calibre">
<div class="mbppagebreak" id="calibre_pb_0">
<div class="mbppagebreak" id="calibre_pb_1">
<div class="mbppagebreak" id="calibre_pb_2">
<div class="calibre13">
<div class="calibre14">
<div class="calibre16">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="calibre14">
<div class="mbppagebreak" id="calibre_pb_3">
<div class="mbppagebreak" id="calibre_pb_5">
<div class="mbppagebreak" id="calibre_pb_6">
<div class="mbppagebreak" id="calibre_pb_8">
<div class="calibre25">
<div class="mbppagebreak" id="calibre_pb_9">
<div class="mbppagebreak" id="calibre_pb_10">
<div class="mbppagebreak" id="calibre_pb_13">
<div class="mbppagebreak" id="calibre_pb_16">
<div class="calibre16">
<div class="mbppagebreak" id="calibre_pb_19">
<div class="mbppagebreak" id="calibre_pb_22">
<div class="calibre1" id="filepos161375">
<h2 class="calibre32" id="calibre_pb_24"><span class="calibre29">Chapter 5</span></h2>
<p class="calibre30"><img alt="" class="calibre11" src="../Images/00004.jpg" /></p>
<div class="calibre31"></div>
<p class="calibre21"><span class="calibre14">As I opened my eyes, I realized three things. One: I was lying on the floor. Two: The floor felt uncommonly good—nice and cool and smooth. Three: I didn’t think I was supposed to actually be down here.</span></p> There really is no need for that and it is such a weight of redundant HTML that, even if it is not that confusing, it might be causing a mobile phone's reader software some kind of problems.
So the first thing I'd do is remove the bulk of them (down at least to the filepos IDed one) and their corresponding </DIV>s at the end of the page (you'll need to count them right or Sigil will get grumpy). If I was releasing a book and saw that mess my OCD would make me remove them on principle, even if they weren't causing any obvious problems.
If that doesn't work take a look at your reader's settings, especially the one that'd show the publisher's styles - if it is off then turn it on and vice versa.
Links dead? Need re-up? PM me.
Strange is the night where black stars rise,
And strange moons circle through the skies,
But stranger still is Lost Carcosa.
