Merge branch 'CJL' into temp-wxr

wxr

2021-02-23 98d002e55304e5c8ff13b7cd195920975bef69f5

 HDL_ON/UI/UI1-Login/RegisterPageBLL.cs

@@ -610,6 +610,7 @@
                    Application.RunOnMainThread(() =>
                    {
                        waitPage.Hide();
                        waitPage.RemoveFromParent();
                    });
                }
            });