In ArcGIS 10.4 I create custom symbology for my layer, and then save the Layer file As with a right click from the Table of Contents. Occasionally I have to update a table this layer file uses as a Join file to produce this symbology. Upon my reconnecting the Join, and opening the Symbology, it tells me the layer file is not supported when I open it on the Import command. I get the error message "This symbology option is not supported for importing."
How do I force it to work?