When uploading surveys we get the error "code 1003, Operation rolled back".
I found as a possible reason to have multiple geopoints within a repeat but we don't have multiple geopoints and for some surveys it was working well and for others we got the error. I will try to give more information after looking at the surveys where the upload failed.
This question is related to https://community.esri.com/thread/183922-download-survey-from-device-after-upload-failed