Pro 2.5 -

[ecam303]

I have followed all steps however when I run 'Start' from Visual Studio and ArcGIS Pro opens, there is no custom metadata option to select, only the original base options (Step 10: click the Metadata style drop-down list and click the metadata style for your custom metadata editor, e.g. CustomMetadataEditor1 Metadata Toolkit Editor.)

I am wondering if this is related to being the updated 2.5 version of ArcGIS Pro?
Further reading I see
"NOTE: When an update is provided for ArcGIS Pro, the add-in that provides the custom metadata editor must be recompiled for the current version of ArcGIS Pro."
Is the best approach to simply revert back to 2.4, or two wait for an update of the metadata toolkit to include 2.5?