The epub and mobi versions of my Smashwords-grinded manuscript I’m working on showed unwanted vertical lines in what seemed to be random places.
The Word version:
The PDF version has no such issues.
Here are instances in the manuscript where the vertical lines formed in epub/mobi. It seemed that this may be related to hyperlinking, but there weren’t hyperlinks involved in instance 2, 8 and 9.
I also had a look at the html of the epub version; each time this error occurred, I noticed the following:
<img src="tmp_1800a049df4ec0c5ec49b2be8d618c4d_ghEFSE_html_m56530bf7.gif" alt="tmp_1800a049df4ec0c5ec49b2be8d618c4d_ghEFSE_html_m56530bf7.gif" class="calibre17"/>
So it seemed like Meatgrinder was generating empty, vertical gif images and placing them in places I didn’t want them to be.
Here’s another example:
<span class="c16">D</span></a><img src="tmp_1800a049df4ec0c5ec49b2be8d618c4d_ghEFSE_html_m5a19aeda.gif" alt="tmp_1800a049df4ec0c5ec49b2be8d618c4d_ghEFSE_html_m5a19aeda.gif" class="calibre17"/><a href="tmp_1800a049df4ec0c5ec49b2be8d618c4d_ghEFSE.ch.fixed.fc.tidied.stylehacked.xfixed_split_053.html#alberts">r<span class="c16">. Louw Alberts</span></a><b class="calibre18">: Scientist, Philosopher, Astronomer and Chief Executive Officer</b></span></p>
Wish I could edit the epub and mobi files myself.
Update [and hence why this post is now in the past tense]:
After some tinkering, I discovered that these gifs were generated from auto shapes. These only appear in Web view, as far as I can tell. That’s why I missed them. I just deleted each of them and the problem was solved!