Salesforce Integration: Can't see custom objects

Help documents indicate that I can utilize custom objects within Salesforce to send JotForm responses to, however the custom object I would like to use is not visible in the drop down. How do I see ALL custom objects?

https://www.jotform.com/build/210895121378155/settings/integrations

I could not replicate the problem. I tried adding a new object just now then hit the reload button on the right side and it's added on the list.

Could you please try it again and make sure you reload the objects?