The difference could be because of different Grid versions. I remember an issue with the UpdateEdited command but it is resolved in v5.1.2 of RadGrid
. Please, make sure you have upgraded the project.
If that does not help, we will need a sample runnable project replicating the issue, which you can send through a regular support ticket. As soon as we can debug that locally, we will get back to you with resolution.
the Telerik team