It takes a longer to remove layers from the ArcMap Table Of Contents (TOC) when the Update tab is enabled on the Manage Features window.
Last Published: November 9, 2015ArcGIS Production Mapping
Bug ID Number
July 8, 2015
June 11, 2020
ArcGIS Production Mapping
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.
This is an issue that cannot easily be solved without a substantial change to the current functionality. However, a workaround has been provided.