Under Performance > General Settings > Minify section … what do you have HTML Minifier ? Is it default, or HTML Tidy?
I’m curious if its a bug in the minifier engine. Can you select the alternate engine and save your settings and re-enable Minify? Dont forget to clear the cache. Does the validator still have a problem?
Btw, to get HTML Tidy to be selectable (if its not) you will need to enable the php extension called “tidy”. Beyond the several ways to do that, you can do so via cPanel.
btw can you give me the full html line (w/opening and closing tags) that the problem occurs on? The minification takes place in /lib/Minify/Minify/HTML.php (or HTMLTidy.php) and does simple (but many) regex operations to minify. So if there is a bug it should be pretty easy to fix.
