InvalidOperationException was unhandled
Collection was modified; enumeration operation may not execute
Source WpfDesktopEdition
StackTrack at ThinkGeo.MapSuite.WpfDesktopEdition.Tile.<>c_DisplayClass2.<DrawException>b_0() at System.Windows.Threading.Exception Wrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
Do you know what the problem is?