In ArcGIS Online, the map extent of a web map cannot be saved over the International Date Line Meridian (180 degrees).
Last Published: October 25, 2019ArcGIS Online
Bug ID Number
December 7, 2015
June 2, 2021
After review by the development team, it has been determined that this issue is related to a known limitation with the software that lies outside of Esri's control. The issue's Additional Information section may contain further explanation.