After upgrading the plugin to the 2.0.43 version we have noticed that our blog went from 3 columns to just 1. Analizing the CSS we saw that there is an empty <div> tag (or it's closing before than expected) which might be the cause: <div class="grid-nav-top"></div>
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have you clear browser cache? it seems i have fixed the issue. just checked the code, could not find the broken tag div, can you please help me figured it out.