In the current version of Duplicate Post RB, the plugin does support copying custom fields and taxonomies, including ACF fields and custom taxonomies, when duplicating posts or pages. This means that all metadata linked to supported post types can be duplicated correctly.
However, full support for ACF Custom Post Types (CPTs), such as Projects or Services created entirely via ACF, is not yet available in the current release. At the moment, duplication works reliably for standard post types and their metadata, but ACF-defined CPTs are still limited.
That said, we’re actively working on the next update, which will introduce full support for ACF content, including custom post types, their fields, and related taxonomies.
If you’d like, feel free to share your specific ACF setup – it can help us ensure the upcoming implementation fully covers real-world use cases like yours.