Preview does not pay attention to conditional text definitions (RoboHelp HTML)
In RBH 11.04.291, I am previewing a topic with two type of conditional text using the binoculars. I set the Conditional Build Tag Expression to one or the other, but regardless of my selection, the other conditional text remains.


I've also tried using the Advanced build expression (instead of Not Condition_2, using Condition_1) with the same results.

I previewed in Chrome, IE, and Firefox. Also the same results.
