Hi Ingo,
Welcome to the Microsoft Community. Thank you for reaching us. We apologize to hear you're experiencing issues with your OneDrive App on your Phone unable to use edit/add.
we will check on this and we will do our best to help you.
Please try and follow this workaround steps To allow others to add, edit, or delete photos.
What You Can Do Instead: Use a Shared Folder instead of Album.
Step 1: Open the OneDrive mobile app
Step 2: Tap “+” > Folder to create a new folder (e.g., “Family Trip 2025”)
Step 3: Upload or move your photos into this folder
Step 4: Tap the three dots (⋯) next to the folder > Share
Step 5: Choose:
>“Anyone with the link” or “Specific people”
>Enable “Allow editing”
Step 6: Share the link with your friends or family
They’ll now be able to add, delete, or edit photos in that folder.
I hope this information helps. Let me know if you have any other questions.
Warm Regards,
Jansher | Microsoft Community Support