Hello @Martin_Ponti�8071
That error seems to say the photo could not be downloaded into the app (from cloud storage or local device storage) for edit, rather than being an upload problem. If you sign into your same account using the Lightroom Web app at https://lightroom.adobe.com, are you able to edit the image there? (if the image works works ok on LR Web, then the problem is the LR iOS app. If LR Web also can't edit, then something is wrong with that file.) Also, in Lightroom Web, do you see a folder called "Sync issues?"
Back in Lightroom iOS, when you open that image and tap the Cloud icon, does the status show "Local Smart Preview?" Can you share a screen image? Here is how my own status looks for an image I am editing from the Lightroom cloud storage. See how I have the option to Get this Original -- can you try that?
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