Caching with Maplex Label Engine and multiple layer symbology completes successfully, but cache status reports less than 100% for certain scale levels.
This issue is fixed in the upcoming release of version 10.4. It is not reproducible in the 10.4 Beta2.
解决办法
1) Simplifying the symbology for the two features mentioned above (Discontinued Roads and Legal Trail ) to a single layer symbol (such as any from the Esri Symbols in the Symbol Selector).
2) Disable Maplex and user Standard Label Engine inste