XARExportIT.scenarioExportXAR is flickering

The element reference of <li id="document:xwiki:Foo.WebHome" class="jstree-node jstree-closed jstree-last jstree-loading"> is stale; either the element is no longer attached to the DOM, it is not in the current frame context, or the document has been refreshed
For documentation on this error, please visit: https://selenium.dev/exceptions/#stale_element_reference
Build info: version: '4.8.0', revision: '267030adea'
System info: os.name: 'Linux', os.arch: 'amd64', os.version: '4.19.0-16-cloud-amd64', java.version: '11.0.6'
Driver info: org.openqa.selenium.firefox.FirefoxDriver
Command: [861d74a1-4eee-473d-b6a4-30556d80bff1, findChildElements {id=1ee529a9-1f0e-4676-b7f9-97b7b5de7998, using=xpath, value=./ul[@role = 'group']/li}]
Capabilities {acceptInsecureCerts: true, browserName: firefox, browserVersion: 101.0.1, moz:accessibilityChecks: false, moz:buildID: 20220608170832, moz:debuggerAddress: localhost:6978, moz:geckodriverVersion: 0.31.0, moz:headless: false, moz:processID: 871, moz:profile: /tmp/rust_mozprofileIhNEFA, moz:shutdownTimeout: 60000, moz:useNonSpecCompliantPointerOrigin: false, moz:webdriverClick: true, pageLoadStrategy: normal, platformName: LINUX, platformVersion: 4.19.0-16-cloud-amd64, proxy: Proxy(), se:cdp: ws://localhost:6978/devtool..., se:cdpVersion: 85.0, setWindowRect: true, strictFileInteractability: false, timeouts: {implicit: 0, pageLoad: 300000, script: 30000}, unhandledPromptBehavior: dismiss and notify}
Session ID: 861d74a1-4eee-473d-b6a4-30556d80bff1

org.openqa.selenium.StaleElementReferenceException: 
The element reference of <li id="document:xwiki:Foo.WebHome" class="jstree-node jstree-closed jstree-last jstree-loading"> is stale; either the element is no longer attached to the DOM, it is not in the current frame context, or the document has been refreshed
For documentation on this error, please visit: https://selenium.dev/exceptions/#stale_element_reference
Build info: version: '4.8.0', revision: '267030adea'
System info: os.name: 'Linux', os.arch: 'amd64', os.version: '4.19.0-16-cloud-amd64', java.version: '11.0.6'
Driver info: org.openqa.selenium.firefox.FirefoxDriver
Command: [861d74a1-4eee-473d-b6a4-30556d80bff1, findChildElements {id=1ee529a9-1f0e-4676-b7f9-97b7b5de7998, using=xpath, value=./ul[@role = 'group']/li}]
Capabilities {acceptInsecureCerts: true, browserName: firefox, browserVersion: 101.0.1, moz:accessibilityChecks: false, moz:buildID: 20220608170832, moz:debuggerAddress: localhost:6978, moz:geckodriverVersion: 0.31.0, moz:headless: false, moz:processID: 871, moz:profile: /tmp/rust_mozprofileIhNEFA, moz:shutdownTimeout: 60000, moz:useNonSpecCompliantPointerOrigin: false, moz:webdriverClick: true, pageLoadStrategy: normal, platformName: LINUX, platformVersion: 4.19.0-16-cloud-amd64, proxy: Proxy(), se:cdp: ws://localhost:6978/devtool..., se:cdpVersion: 85.0, setWindowRect: true, strictFileInteractability: false, timeouts: {implicit: 0, pageLoad: 300000, script: 30000}, unhandledPromptBehavior: dismiss and notify}
Session ID: 861d74a1-4eee-473d-b6a4-30556d80bff1
	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
	at org.openqa.selenium.remote.codec.w3c.W3CHttpResponseCodec.createException(W3CHttpResponseCodec.java:200)
	at org.openqa.selenium.remote.codec.w3c.W3CHttpResponseCodec.decode(W3CHttpResponseCodec.java:133)
	at org.openqa.selenium.remote.codec.w3c.W3CHttpResponseCodec.decode(W3CHttpResponseCodec.java:53)
	at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:184)
	at org.openqa.selenium.remote.service.DriverCommandExecutor.invokeExecute(DriverCommandExecutor.java:167)
	at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:142)
	at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:543)
	at org.openqa.selenium.remote.ElementLocation$ElementFinder$2.findElements(ElementLocation.java:179)
	at org.openqa.selenium.remote.ElementLocation.findElements(ElementLocation.java:102)
	at org.openqa.selenium.remote.RemoteWebDriver.findElements(RemoteWebDriver.java:367)
	at org.openqa.selenium.remote.RemoteWebElement.findElements(RemoteWebElement.java:219)
	at org.xwiki.tree.test.po.TreeNodeElement.getChildren(TreeNodeElement.java:114)
	at org.xwiki.flamingo.test.ui.XARExportIT.exportXARLotOfSelectedFiles(XARExportIT.java:127)
	at org.xwiki.flamingo.test.ui.XARExportIT.scenarioExportXAR(XARExportIT.java:50)