In Ax9, if you create a box with a border bottom only and a pattern, it doesn’t work. I mean, it shows the border but without the pattern. If you add any of the three other borders, pattern appears again
IN fact, it doesn’t work for any of horizontal borders. Whatever Top or Bottom.
It looks like this is a known issue we have on file where all line patterns render as solid in the browser output, and I’ve added this post to that report.
Also renders as solid in AX8 before you even attempt browser output. Running into this as well.