Hello walter verhoeven,
The
IsManaged property should not bother you. It will be true if you are using System.Transactions. Otherwise this property should be false.
Usually inserting incorrect data into your database might lead to a crash of the IObjectScope on commit. By incorrect we mean that you might be trying for example to insert null into a not Nullable column. However in such cases you should see an exception. Can you please open a support ticket and send us small application that represents this odd behavior as we would really like to dig further into this and assist you with anything we can.
Kind regards,
Petar
the Telerik team