Unable to synchronize replica. Details: Error In processing replica sync request.
I have been having sync issues. As a test I have downloaded a map from Arc GIS online to field maps. I have made one edit on field maps and tried to sync it and I still get the sync error above.
Update. When I download a new offline area. It immediately fails sync.
Has anything changed in the online version of your project whilst this area was offline?
Do you have any arcade code or attachments in your offline area?
You can use the workflow in this article to help get yours from your device