Hello,

To begin, I want to extend my heartfelt apologies for the delayed reply, 

which is due to an unexpectedly high volume of inquiries. 

We truly value your patience during this period.

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We did have some bugs in previous versions for Gravity Tables Editing, so please check if you got the latest wpDataTables 5.8.2 and the latest Gravity Forms, as well as the latest Gravity Form integration Add-on installed.

If you got all of them updated, there should not be an issue.

There are some other limitations for Editing with our Gravity Integration, though, you can check the full list of limitations on the Documentation hyperlink, but here is one of them :

• Attachments are deleted when editing – At the moment, if your Gravity Forms have images or other attachments included, you will not be able to properly edit the table generated from the form since the uploaded file will be deleted upon editing. We do not recommend enabling the editing option when you have attachments in the form.

I hope that helps.

Or if you have the exact same Table and same Plugins+Theme combination working on another Site; Then it can be a conflict, as you said.

You can also check if you use any Gravity Add-ons to make 'additional fields'.

If any field is made by a Gravity Add-on, our integration does not guarantee it will work.

Our devs only made it to work 100% with the Core Gravity Plugin, but for any Add-ons we can not guarantee how it will behave.

I hope that helps.