CKEditor suddenly escaping ALL html, despite config (IT FIXED ITSELF SOMEHOW)

I have these lines in my config file:

config.htmlEncodeOutput = false;
config.entities = false;
config.basicEntities = false;

Yet it's still escaping all html, turning <p>Test</p> into &lt;p&gt;Test&lt;/p&gt;

The strangest part is, this changed without me changing anything in the config. Does anyone know what to do?

Edit: and suddenly it's working again, despite me again doing nothing.