Invited Smartthings iPhone App User Doesn't See Any Devices/Automations, etc

Using the Smartthings invite user with QR code. Apple iPhone user installs Smartthings, logs into their existing Samsung account but none of the devices or automations show. Have tried to reinstall the Smartthings app and still nothing shows from the existing ST home hub.

Am I missing a step?

Could you perhaps be looking at the wrong Location in the mobile app? A Location gets created when you first use a Samsung account with SmartThings.