The error message returned states that editing true curves is not allowed. This is a Warning level message and not Verbose in ArcGIS for Server 10.3.
Last Published: March 7, 2022ArcGIS for Server
Bug ID Number
February 25, 2015
June 1, 2022
ArcGIS for Server
Operating System Version
Will Not Be Addressed
The development team has considered the issue or request and concluded it will not be addressed. The issue's Additional Information section may contain further explanation.
This issue was logged against a version of the software which is no longer supported, and has not had activity in some time. We apologize that we were unable to address this issue within the current product life cycle. If the issue continues to affect your work in a supported release, please contact Technical Support.