RoboHelp2015 Tables not displaying in webhelp output

We have a table in a dropbox where I created a table style. When you add the table and table style in the dropbox, the table looks great. When you Preview the topic, the table in the dropbox looks great. When you generate the Webhelp(Pro) output, the tables in the dropboxes no longer have borders anywhere when there should be borders for every row and column. Is there a specific way to define table styles (a specific order like whole table first, then first row, etc.) to make them display properly? For example, if I try to apply all borders for the "whole table" sometimes the lines appear in the "table style preview box" and sometimes they don't. It seems like the more I try to get these defined properly, the more the tables get messed up. I've even changed a table style and had it mess up another table style even though they are independent of each other.