I have have set up a custom post type 'developments' on a house builders website with custom fields that also have a RFG and on the development post I have successfully displayed the RFG of the post in a table view in the content template using the block view. I now want to display the same data on a page of the website this time using the RFG from all the posts in a table in the same way but I don't seem to be able to use the RFG on the block view in the page, is that correct?
I have instead tried to use the legacy view builder but it doesn't display the data on the page when I add it to the page.
hidden link - you can see the RFG in the table before the form
hidden link - I have been able to add a block view to link through to the posts here but not the table view to aggregate the RFG from the same posts.
I'm not I entirely understand what you are aiming for, but let me just clarify some things.
Group of fields belonging to a repeatable field group are not stored against the post the fields notionally belong to, rather, to enable them to be grouped, they are stored against a special type of post that is essentially a child post as part of a one to many relationship.
When you want to display repeatable field groups with a View, the View is querying the child posts and iterating over the fields belonging to each of those child posts (i.e. a "group" of fields).
The View block editor insists that you specify the parent, i.e. the post the groups of fields notionally belong to. The expected context is a content template for the "parent" post.
There is not the same limitation with the legacy View editor. You can create a View to query the custom post type representing the groups of repeatable fields. A notice will indicate that you should add a relationship query filter to specify the parent, but it is not required, in which case the View should return all groups of fields of that type, regardless of which post they belong to.
When iterating over the groups of repeatable fields in the output section, it should be possible to output the individual field values.
Does that make sense? Does it affect what you are aiming to do?