Not able to click on a Iframe button-- Java- Appium

Hi,
I was trying to click on a button which is present inside an Iframe. Test is showing successfull but not clicking on that button. I am writting scripts using Java.Plese find the below code.

First I switched to webview from native app using
driver.context(“WEBVIEW_0”);

After that Switch to Iframe using

driver.switchTo().frame(“iframe_a”);
Thread.sleep(10000);
WebElement PlayIcon = driver.findElement(By.xpath("//div[@class=‘plt-playBtnForIpad’]"));
PlayIcon.click();

But PlayIcon is not clicking. Its not showing any error.
Can anyone please help me regarding this.

Thanks,
Tariful Islam

Any updates regarding this issue???