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Apologize for the late response here. Sorry to hear that you're having issues with your Google Nest display. I'd like to dig deeper into this - are you using the same account where your photos are saved? Is it a shared photo?
Please try asking your device to show your photos by saying, "Hey Google, show me photos of <name of album>" These will help us isolate the issue on the photo frame.
Let me know how it goes.
I wanted to check in and see if you managed to see Muddi's post? Please let me know if you are still having issues with your device. I would be happy to assist, and ensure your device is working as intended.
I want to ensure you are good to go, and everything is working properly. Please let me know if you are still having trouble, as I will be locking the thread in 24 hours due to inactivity.