We're using the agent grouping feature to use a different theme for mobile devices. The problem is when W3TC uses the alternate theme for mobile, the content of the post isn't returned.
I've back-tracked it to where the single.php calls "the_content". This is what we see in the source where the_content function is called.
<div class="story-text">
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Served from: domain.com @ 2014-03-12 23:16:05 by W3 Total Cache -->
</div>
Does anybody have any idea what's going on? I've tried turning off all caching features, but nothing seems to fix the issue.