Hello wazm123.
Thank you for using Apple Support Communities. It sounds like you're noticing issues with your photos. Specifically, they're not loading and you see an exclamation mark on them. We can understand how this would be an issue. Allow us to investigate this issue and assist in any way we can.
This does sound like a possible syncing issue with iCloud. Are you currently connected to a strong Wi-Fi network? If so, do you notice any changes or photos downloading properly? If you have Low Power Mode enabled, you might want to turn that off. This feature does pause iCloud Photos:
Use Low Power Mode to save battery life on your iPhone - Apple Support
We would like to share a helpful resource with you as well. Please check out the link below:
Get help with iCloud Photos - Apple Support
Be sure to follow all the recommended troubleshooting steps listed for issues with iCloud Photos.
We hope this information is useful.