appium: org.openqa.selenium.NoSuchElementException: Can't locate an element by this strategy: Locator map:

The problem

1.7.2-beta2 + java client version 5.0.4

1. I had an element which was working in earlier version of appium

@AndroidFindBy(xpath="//android.widget.Button[@content-desc='button-lets-begin']")
@iOSFindBy(xpath="//XCUIElementTypeButton[@name='button-lets-begin']")
private WebElement LetsBeginButton;

org.openqa.selenium.NoSuchElementException: Can't locate an element by this strategy: Locator map: 
- native content: "By.id: LetsBeginButton" 
- html content: "by id or name "LetsBeginButton""
	at io.appium.java_client.pagefactory.AppiumElementLocator.findElement(AppiumElementLocator.java:102)
	at io.appium.java_client.pagefactory.interceptors.InterceptorOfASingleElement.intercept(InterceptorOfASingleElement.java:61)
	at org.openqa.selenium.remote.RemoteWebElement$$EnhancerByCGLIB$$d27c0df4.click(<generated>)

Environment

• Appium version (or git revision) that exhibits the issue: 1.7.2-beta2
• Last Appium version that did not exhibit the issue (if applicable): 1.7.0
• Desktop OS/version used to run Appium: Mac OS
• Node.js version (unless using Appium.app|exe): v8.4.0
• Mobile platform/version under test: iOS Simulator 11.2
• Real device or emulator/simulator: simulator
• Appium CLI or Appium.app|exe: CLI

Details

If necessary, describe the problem you have been experiencing in more detail.

Link to Appium logs

https://gist.github.com/vikramvi/53556a6fe2cef7e5363c8b75a50d5f8e

Code To Reproduce Issue [ Good To Have ]

NA