Not able to click a button element in safari browser(Landscape)

Appium: 1.7.1
Xcode: 9
java client: 6.0

capabilities.setCapability(“usePrebuiltWDA”, true);
capabilities.setCapability(“acceptAlerts”, true);
capabilities.setCapability(“safariAllowPopups”, “true”); capabilities.setCapability(“unexpectedAlertBehaviour”, “accept”);
capabilities.setCapability(“orientation”, “LANDSCAPE”);
\capabilities.setCapability(“safariOpenLinksInBackground”,true);

I am able to click on element in safari browser on PORTRAIT mode but in LANDSCAPE mode without any error.
Please help me on this.