In ArcGIS Pro, making a symbology change on a layer while working in a layout causes the layer to be deselected in the Contents pane.
Last Published: January 6, 2016ArcGIS Pro
Bug ID Number
December 3, 2015
June 11, 2020
This issue was not reproducible when tested by the development team. Issues may be given this status when they cannot be reproduced or are no longer relevant in a development version of the software, but a specific fix was not installed to address the issue. The issue's Additional Information section may contain further explanation.
This works correctly in ArcGIS Pro 1.2.
Edit the symbology in the map view directly rather than the layout.