I have found an issue with the Grid using in-line editing - and it only seems to happen in the Edge browser. A user will enter/edit data and press the TAB key (to leave the field) and the data disappears. I also tried the demo (https://demos.telerik.com/aspnet-mvc/grid/editing) and was able to replicate the issue. It only appears to happen when a user tabs out of the field, if they click out of the field the changes remain (as a dirty cell). Is there a workaround for this?