EDIT: Solution found. See additional information at the bottom of this post.
Hi everyone,
I use ArcGIS Field Maps on a weekly basis. Most of the locations I work in have unreliable mobile data service, so my standard practice is to make offline areas of Web Maps that are hosted on ArcGIS Online. I collect data points (with occasional lines and polygons) on my offline version of the map - including photo attachments - and then synchronize my map when I get back to the office at the end of the day.
I have almost never had a problem synchronizing until last week.
At first, I thought it was limited to only one of my offline maps. After additional experimentation, however, I realized that none of my currently existing offline areas - from multiple different, unrelated Web Maps - can successfully sync.
I hit the "Sync Now" button, and almost immediately I'm met with an error. When I click on "View Errors," all I see is a list of general errors: The operation couldn't be completed. (ArcGIS.ArcGISError error 1.)
That's the only information I have.
One of my offline areas has more than two dozen pending edits, while all my other offline maps have no pending edits. There have not been any significant changes made to any of these maps between the time that I made the offline areas and now, at least as far as I'm aware. I'm the creator of these maps and typically the only one with permission to edit them and their offline-related settings, and I have not recently adjusted the offline settings for any of these maps, let alone the offline settings for all of these maps.
It would be a major setback for me to lose the data contained in the pending edits for one of the maps. I have searched and searched and searched through these forums for a solution that could work, but I haven't found anything effective yet. I am not the ArcGIS Online account administrator for my organization, and I don't have an easy or quick way to contact that person, so it would be ideal for any solutions to be implemented on my side (i.e., the map creator and user) rather than an account administrator's side. If you have any suggestions for how I might fix my synchronization errors without losing the pending offline data, I would be extremely grateful. Thank you in advance for any help.
P.S. As far as I can tell, I am still logged in to the application. The "Profile" menu (the "blue head and shoulders in a circle" icon in the top left of the application home screen) shows my ArcGIS Online account name at the top. I have not yet tried logging out and logging back in because I'm worried about losing my pending edits.
P.P.S. My most recent successful synchronization appears to have occurred on Wednesday, February 11, 2026, on a separate map from the one with pending offline edits. The offline area with pending edits was used on Thursday, February 12, 2026. Other users in our organization have not had problems synchronizing their offline versions of either of these maps, or any other maps, as far as I'm aware.
EDIT 02/20/2026:
I was "ghost" logged out.
My username was still displaying at the top of the profile page, and it seemed like all of my maps were still available to me, but it turns out I was actually logged out... or at least not fully logged in.
The final clue came when I tried to find a new Web Map I had just made to test some of these issues on. When I opened my Field Maps app, I couldn't see the newly made map, so I pulled down from the top to refresh the app. The spinning gear or wheel (or flower petals?) icon began spinning, and it just never stopped. It was hung up on the refresh effort. That's when I realized I was only seeing maps that I had previously opened on my device - I wasn't able to see the rest of our content in ArcGIS Online.
So I logged out. Then I logged back in.
Results:
The pending edits on the offline map area were preserved. They were there when I returned to that offline area, and I was able to synchronize them with no problem after logging back in.
I was also able to synchronize other offline map areas that had no pending edits. Full functionality appears to be restored.
Why did this happen? Why did it show me as "logged in" when I clearly wasn't, or at least not fully? No idea. But at least we know that logging out won't delete pending edits on offline map areas. That's my contribution.