I followed [this guide](https://www.mageplaza.com/magento-2-create-cms-pages-programmatically.html) to register my custom module as a CMS page using the UpgradeDataInterface

For some reason, the version it uploaded was an older one (cached or something maybe?) so I tried deleting it from the content > pages menu. Now, I can't seem to be able to register it again. I have tried using UpgradeData and changing the version on my Module.xml (as per the guide above), and also used the InstallDataInterface via [this guide](http://www.herveguetin.com/create-cms-blocks-and-pages-programmatically/).

I am using the `php bin/magento setup:upgrade` function and not seeing any results. Could this be a cacheing issue? Any idea on what steps to try to fix?