Resolved
Reported for: Toolset Views 3.1.2
Resolved in: 3.1.3
Conditional blocks inside Views, tend to break the View styles on the frontend if the View output is cached.
This issue will be fixed in the next release of Toolset Views.
In the meantime, download this patch, extract it and replace
wpv.class.php
in /wp-views/embedded/inc/