I tried using Sourcerer and when I couldn't get the code to work I checked page source:

<!-- Comment - Sourcerer: The code has been removed, because the owner of this article does not pass the security level. -->

My code is html only. Using version 2.2.3

Any way around this?

Thanks.

As it says, the creator of the article does not pass the security level.
You can change the security settings in the Sourcerer system plugin.

So either set the security level lower or change the creator of the article to someone who does have the required level.