Dynamic Symbols disappearing when zoomed but labels staying

Discussion created by timmerspk on Sep 8, 2013
I've got a live data layer published in a dynamic map service where sometimes when you zoom in the symbols stop drawing.  The labels remain.  

This has been happening off and on through various versions ever since probably 9.3.

It's something to do with the data which is always changing. 

The data is also having a regular delete append via FME which may explain it, but why do the labels stay?

We used to get this behaviour happening with our arcgis mobile data also but that was fixed in a later version.