Hi there,
Thank you for reaching out. Let's reset the preferences this way one more time. Preferences can be reset in the following manner:
As you have an iOS device, you may open the Adobe Express app and tap on the Settings icon at the top right. Select Push Notifications > Open Settings, then tap on Photos > All Photos. This will allow Adobe Express to access all photos in the phone library.
And if someone is working on an Android device, you may need to scan through android Settings > Apps & Notifications > Adobe Express > Permissions, then tap Storage > Allow
Thanks
Manmeet