Error in Drush, Class 'ParagonIE\Halite\HiddenString' not found

Seeing an error when running Drush with the Sodium module for

drush updb

and running /update.php works correctly with no errors from a browser.

WD php: Error: Class 'ParagonIE\Halite\HiddenString' not found in _sodium_encryption_methods_sodium() (line 48 sodium/plugins/encryption_methods/sodium.inc)

Libraries appear installed correctly and have seen similar issues when running Drush where the classes are not pulled in correctly, but only when running Drush for certain modules.

Something about the drush environment is not pulling in the classes.