The Issue:
I recently ran into an issue where I saw a number of posts showing up in WordPress called “Unititled_1”, “Unititled_2” and so on.
No author, no content, nothing that gave me any real clue…until I looked in the postmeta and saw gravity form IDs related to it as well as a value for one of my form fields.

That gave me enough information to then look at the form and to check all the form field types. Sure enough – one of my set of checkboxes were not the standard form fields – it was marked as a “Custom Field” form field. Therefore – every time someone filled out and submitted the form, a new post with only the poset meta for that custom field was created.
Mystery Solved.
The Solution:
Verify you also see the custom field data either by looking at the DB or by going to Screen Options > Custom Fields (checked) and then look at the meta data there. Once you verify which form, and which field ID is responsible for this – edit the form, and switch the form field type.
Note:
You will want to do an export before removing the field so if you need to recreate that field input – you will have the data. (Once you delete the field – the data will also be deleted.
Justine
Thank you so much for this information! I still can’t seem to find which field ID it is. It’s definitely coming from my signup form as I deleted all the posts yesterday, I received a sign up this morning and there was another untitled post on my page ! Are you able to explain a bit further on how to find the field? Thanks again.
Stephane
For those wondering how to find the field creating problem.
1/ Don’t rely on the small icon in the form. A custom field can be hidden behind a text icon (it was my case)
2/ While being on the field setting pane (as the screenshot Jennifer is showing), select each field one by one.
3/ One of the field will be a custom field, despite showing another icon in the form.
4/ Replace the field, save the form and you’re set!
John
THANK YOU for posting this. Came across this issue today and was quickly able to find those fields one of our team accidentally used vs the single line text field
Jennifer Zelazny
Glad it was helpful!