After updating the office desktop to Slackware 15.0, indexes on this blog failed to update correctly. Also noticed were incorrect HTML tags and missing empty line breaks.
Overlooked during testing is Slackware 15.0 includes the
tidy-html5 package and is installed from the
/l series of packages.
The remedy was removing and blacklisting the
tidy-html5 package and reinstalling an older version of tidy. Then massage affected blog files mangled by the newer package. Thereafter all related issues disappeared.
Newer is not always better.
Problem solved but Yet Another Example why updating computers is so frustrating.
Something always breaks. Always.