Andy Whalen

I should note that I’m using this on a multisite network, and maybe that’s where the problem lies. The steps I’m taking to get this are:

1. Install WP 3.5.1, enable multisite network
2. Install the AddThis plugin through Network Admin > Plugins and then network activate it
3. Add a new site to the network (Network Admin > Sites > Add New)
4. Immediately visit the new site’s Dashboard by clicking on the link that appears after adding the site (if I visit another page first, like the front page, I may not see the warning, making me think it happens somewhere where it’s not visible to me)
5. Warning: array_key_exists() appears at the top of the Dashboard

I’m starting with a brand new installation, and I’m not using a backed up database or imported posts. I’m using the default Twenty Twelve (version 1.1) theme that comes with WP 3.5.1.

This was fixed in version 1.3.4.