WHM/cPanel interface(s) blank for one or some locales

Symptoms

The interface in cPanel or WHM may be blank when viewed using a specific locale or may display an error similar to the following.

A fatal error or timeout occurred while processing this directive.

Template::Exception:
    [TYPE]=[file]
    [INFO]=[libraries/cldr/en.js: not found]
    [TEXT]=[

Description 

This issue occurs when one or more localization files are missing or corrupt.

Workaround

Running the following command will rebuild the localization files. Please be sure to replace $locale with the appropriate two-letter code.

/usr/local/cpanel/bin/_build_translated_js_files $locale