Hi @linhmphan,
Is there any other locators that you defined in your test object, or is it only just XPath? If you captured the test objects at first using Web Recorder, we will capture all types of locators so that when using Self-healing, it can fall back to other locators if the first one fails. Recently, we have Recorder Plus and Smart Locator, which are also reliable, so maybe you can try using these combined with your custom XPath.
Hope that this would help 