eBay errorId 25002 API_INVENTORY "A user error has occurred. Add at least 1 photo."

My code will create an generate authorization code, then exchange for access token, createOrReplaceInventoryItem, getOffer, deleteOffer, createOffer in Sandbox and Production.

But when I try to publishOffer I get 25002 API_INVENTORY error. How to fix?

Response: {"errors":[{"errorId":25002,"domain":"API_INVENTORY","subdomain":"Selling","category":"REQUEST","message":"A user error has occurred. Add at least 1 photo. More photos are better! Show off your item from every angle and zoom in on details.","parameters":[{"name":"0","value":"Add at least 1 photo. More photos are better! Show off your item from every angle and zoom in on details."},{"name":"1","value":"Add at least 1 photo. More photos are better! Show off your item from every angle and zoom in on details."}]}]}

My createOrReplaceInventory data payload has a valid imageURL:

data = {    # "title": title,"product": {"isbn": [ISBN],"title": eBay_title,"description": description,"publisher": publisher,"edition": edition,"aspects": {"Language": [language],"Book Title": [title],"Author": [author],"Publisher":[publisher]        },"imageURLs": ["https://i.ebayimg.com/images/g/MtcAAOSwkD1mxd1u/s-l1600.jpg"            ]    },"condition": condition,"conditionDescription": first_paragraph,"price": {"value": price,"currency": "USD"    },"packageWeightAndSize": {"weight": {"value": 6.0,"unit": "POUND"        },"dimensions": {"length": 12,"width": 8,"height": 2,"unit": "INCH"        },"packageType": "LETTER"    },"itemSpecifics": {"nameValueList": [            {"name": "Publisher","value": publisher            },            {"name": "Author",  # Ensure Author is included here"value": author            }        ]    },"availability": {"shipToLocationAvailability": {"quantity": 1,"shipToLocationAvailabilityPerShipToLocation": [                {"quantity": 1,"shippingLocationType": "WAREHOUSE","merchantLocationKey": merchantLocationKey                }            ]        },"pickupAtLocationAvailability": [            {"availabilityType": "IN_STOCK","fulfillmentTime": {"unit": "DAY","value": 1                },"merchantLocationKey": merchantLocationKey,"quantity": 1            }        ]    }}

My package conforms to publishOffer documentation. And I can publish with a default ISBN "978-3-16-148410-0" in production.