Some tokens show as "missing name or description" in status report Looking at a Drupal 7.43 maintenance project, my status report lists the following issue for Token 7.x-1.6:

The following tokens or token types are missing required name and/or description information:

$info['types']['date']
$info['tokens']['node']['url']
$info['tokens']['file']['size']
$info['tokens']['user']['url']
$info['tokens']['date']['custom']
The following token types are not defined but have tokens:

$info['types']['node']
$info['types']['term']
$info['types']['vocabulary']
$info['types']['file']
$info['types']['user']
$info['types']['current-user']


I have cleared cache a few times, hit update.php, and ran cron a handful of times. This message never goes away.

It is causing RealName to no longer work, path aliases are not being made, and page title / meta tags are not appearing (all are driven by Token).

What is causing this and how can I fix it? I am unable to replicate the issue locally with the same database and same code.
In my case, the answer is related to the autoslave module: https://www.drupal.org/node/2898888

Also discussed here (not resolved), https://www.drupal.org/node/1265848#comment-12191146

Other mentions online about the PHP memory settings had no effect for me.

Hopefully this helps someone as the issue has been quite elusive.