Not able to preview or view documents with one template

Nice to meet the community.

For the past day we've had an issue where documents created with one custom type fail to display. When the code tries to retrieve the documents the retrieved document doesn't have a "body" tag.
When I look at the documents seem to be retrieve correctly without error.
We believe the custom type is valid.

Help trouble shooting or where to look very welcome. We're unable to update some of our key pages at present and I'm under some pressure.

Hello Craig,

Welcome to the prismic community, and thanks for reaching out to us.

If you can see the document with data in grapql/Rest API, the issue might be related to the code.

How are you querying that Custom type in your project? Can you paste the code here?