Symptoms
Enabled PHP Selector modules do not load after being saved.
Description
a Cpanel user uses PHP Selector to enabled a PHP module like mysqlnd but the driver isn't loaded and the website still fails that the module is missing.
Workaround
Typically, the user needs to be remounted via cagefs when this occurs.
These are the steps if the user for example was rocky.
cagefsctl --force-update
cagefsctl -m rocky