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Example not exact code:

WebDriverWait wait = new WebDriverWait(driver, TimeSpan.FromSeconds(45));
wait.Until(ExpectedConditions.ElementIsVisible(By.Id(Element)));
wait.Until(ExpectedConditions.ElementToBeClickable(By.Id(Element)));
driver.FindElement(By.Id(Element)).Click();

And it SOMETIMES simply doesnt click. No errors, nothing, and tests fail at next steps, because i assume element has been clicked. 1/10 of same test runs fail to click.

Afterwards inspecting failed test, webdriver seem to 'highlight' checkbox instead of click. Manually i can obviously see/click it.

Google says it might be because element is not enabled yet at point when driver is clicking but i understand if its clikable its enabled. And if it would be covered by another element due to loading error would be different: 'element is not clickable at point..' and there are no errors.

I really would not want to use explicit waits.

What could cause it ?

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What you could do is to change the browser and/or the selenium server version.

Try few combinations of selenium and the browser driver versions ans see which one is most stable.

If you have issues only in a certain section when clicking the button you could try to add a method to wait for the page to be loaded if needed and add an extra focus on the element before clicking it.

In my case when this started to happen i updated the browser driver version and also the selenium version.

  • No, even after experimenting with different webdriver and firefox versions, some clicks still fail, in the same as before way. And on at least 3 different elements. But it's not 1/10, more like 1/100 now, same element is clicked in the same way across multiple tests, yet sometimes click doesnt happen (not in the same tests even!). This is literally driving me insane. – George Sep 7 '16 at 9:17
  • Changed to chromedriver/chrome and although i havnt run enough tests to make sure it solves it, seems to work way better. – George Sep 7 '16 at 10:07

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