Completed
Last Updated: 19 Mar 2020 14:37 by ADMIN
Release R2 2020 (LIB 2020.1.323)

when set RadMessageBox.UseCompatibleTextRendering = false;

at runtime is generated System.StackOverflowException. 

To workaround:

private void RadForm1_Load(object sender, EventArgs e)
{

    foreach (Control control in RadMessageBox.Instance.Controls)
    {
        RadControl radControl = control as RadControl;
        if (radControl != null)
        {
            radControl.UseCompatibleTextRendering = false;
        }

    }
}