[mapguide-users] Mapguide 2.2 error FDO_38_ITEMNOTFOUND with shp source

[Servizio informatico - Comune di Porcia]

Mapguide 2.2 on centos linux and Maestro 3.1 on winXP
I have a SHP feature source (shp created with Autocad map) that works
correctly. I can preview data and feature (polygons).
After editing the shp with Qgis, in mapguide i can preview data but "view
feature" get the error "An exception occurred in FDO component.
FDO_38_ITEMNOTFOUND". The error log says:
		Error: An exception occurred in FDO component.
		        FDO_38_ITEMNOTFOUND
		 StackTrace:
		  - MgFeatureServiceHandler.ProcessOperation() line 83 file
FeatureServiceHandler.cpp
		  - MgOpGetSpatialContexts.Execute() line 105 file
OpGetSpatialContexts.cpp
		  - MgServerFeatureService.GetSpatialContexts() line 940
file ServerFeatureService.cpp
		  - MgServerGetSpatialContexts.GetSpatialContexts() line 100
file ServerGetSpatialContexts.cpp	

The same shp files works both correctly on mapguide 2.1 (on windows). 
Suggestion?

Giuseppe