You have a layer that uses a nonsimple fill symbol for symbol level drawing display, which can potentially impact the performance of dynamic map rendering.
Check the drawing performance for your layer or basemap layer in ArcMap. If you are publishing, check the drawing performance for your service in the Preview window.
- If you need to make changes, right-click this warning message in the map analysis results panel and click Change symbol to edit the symbol. Then, change the symbol to a type other than a picture fill symbol, such as a simple fill symbol.
Basemap layers and map services use a new graphics pipeline that can employ a high-performance processing method to draw symbol levels. However, certain symbols, such as picture lines, picture markers, and character markers, are incompatible with this high-performance method. You can choose to mark this warning as an exception to avoid receiving the warning next time you analyze the map. This layer will then use a slower method to perform symbol level drawing for this layer.