Question SOLVED: Preview does not work in Kunena 2.5.6 (and perhaps others)

See www.kunena.org/forum/K-2-0-Support/124180-Problem-with-PREVIEW and you find many pages of "solutions" but all of them failed to make preview work.

Then in reading many pages, and finally finding www.kunena.org/forum/K-2-0-General-Quest...-this-first?start=50 (oddly titled "Before-you-post-your-question-read-this-first") on page 6 of 8 pages, I found the answer:

"Ok, for those who have endured and read through all the post to get to this point, I have a solution for some of the problems.

Preview doesn't work
If your Preview doesn't work you need to enable your SEO. Go to your site's Global configuration and enable (J2.5) 'Search Engine friendly URL's' and 'Use URL rewriting' (remember to rename your htaccess.txt file to .htaccess, if your sites running on a Apache server).

This seems to be a KUNENA bug which will hopefully be fixed."

Yup, it's that simple folks. If you want the preview to work, you have to make your site search engine friendly. Of course if you don't want to be SEO friendly, too bad. But at least it is a simple tick box rather than mucking with CSS.

I've posted this as a SOLVED file in hopes that no one adds any more comments, so when someone googles the question they get the easy answer first and don't need to spend hours going down rabbit holes.

Thanks to Charl Laas for the answer.