Hi Squaggs,
We recently release a new version of Gwangi (version 1.1.0). Updating Gwangi and all the required plugins to the latest version should fix this issue.
If you have correctly updated Gwangi and Grimlock and the problem should now fixed. You might be still seeing the issue because your browser cache is showing you an older version of the page (browsers do that to load pages faster). So to see that the issue is resolved you will need to empty your browser cache and reload the page. If you want to read more on what browser cache is and how to clear it, here is an article that might help you:
https://www.lifewire.com/how-to-clear-cache-2617980
If you still need to update your theme, you can download and install the Envato Market plugin (https://envato.com/market-plugin/) on your WordPress site.
Once the plugin is installed and activated, go to “Envato Market” in your admin menu and follow the instructions under “Activate Envato API Connection”.
Once done, you will see your purchased themes appear under the “Themes” tab. There, you should be able to update your Gwangi theme from there by clicking the “Update available” button.
We hope this helps.
Regards