public class CustomRadGridView : RadGridView 
    {
        private MethodInfo? writeFlagMethodInfo = null;
        private object isMouseOverCacheFlag = null;

        protected override void ClearContainerForItemOverride(DependencyObject element, object item)
        {
            base.ClearContainerForItemOverride(element, item);

            var gridViewRow = element as GridViewRow;

            if (gridViewRow != null && gridViewRow.IsMouseOver)
            {
                this.ClearRowIsMouseOverCache(gridViewRow);
            }
        }

        private void ClearRowIsMouseOverCache(GridViewRow row)
        {
            try
            {
                if (this.writeFlagMethodInfo == null)
                {
                    this.writeFlagMethodInfo = row.GetType().GetMethod("WriteFlag", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic);
                    var coreFlags = typeof(UIElement).Assembly.GetType("System.Windows.CoreFlags");
                    this.isMouseOverCacheFlag = coreFlags.GetField("IsMouseOverCache").GetValue(coreFlags);
                }

                this.writeFlagMethodInfo.Invoke(row, new object[] { this.isMouseOverCacheFlag, false });
            }
            catch (Exception)
            {
            }
        }
    }