I am having trouble getting an image to load to a google slide using the webhook addon.
Here is what is happening.
Gravity Forms or the Webhooks add-on don’t have any control over the Google doc creation. That’s entirely handled by make.com
In other words, make.com gets the data from your entry, including the URL for the signature image. Then what make.com does with that data to create the document is up to them.
So you will want to contact make.com support for advice.