InplaceEditWithAnnotationsIT#editInplaceWithAnnotations is flickering

org.openqa.selenium.TimeoutException: 
Expected condition failed: waiting for org.xwiki.test.ui.XWikiWebDriver$$Lambda$925/2096523167@40e26c1f (tried for 10 second(s) with 500 milliseconds interval)
Build info: version: '3.141.59', revision: 'e82be7d358', time: '2018-11-14T08:17:03'
System info: host: '97e77881421a', ip: '172.17.0.2', os.name: 'Linux', os.arch: 'amd64', os.version: '4.19.0-16-cloud-amd64', java.version: '1.8.0_282'
Driver info: org.xwiki.test.ui.XWikiWebDriver
Capabilities {acceptInsecureCerts: true, browserName: firefox, browserVersion: 89.0, javascriptEnabled: true, moz:accessibilityChecks: false, moz:buildID: 20210527174632, moz:geckodriverVersion: 0.29.0, moz:headless: false, moz:processID: 283, moz:profile: /tmp/rust_mozprofileXRmQ27, moz:shutdownTimeout: 60000, moz:useNonSpecCompliantPointerOrigin: false, moz:webdriverClick: true, pageLoadStrategy: normal, platform: LINUX, platformName: LINUX, platformVersion: 4.19.0-16-cloud-amd64, setWindowRect: true, strictFileInteractability: false, timeouts: {implicit: 0, pageLoad: 300000, script: 30000}, unhandledPromptBehavior: ignore, webdriver.remote.sessionid: a5d9a015-e399-48e6-a986-205...}
Session ID: a5d9a015-e399-48e6-a986-20545e28f102
	at org.openqa.selenium.support.ui.WebDriverWait.timeoutException(WebDriverWait.java:95)
	at org.openqa.selenium.support.ui.FluentWait.until(FluentWait.java:272)
	at org.xwiki.test.ui.XWikiWebDriver.waitUntilCondition(XWikiWebDriver.java:226)
	at org.xwiki.test.ui.XWikiWebDriver.waitUntilElementsAreVisible(XWikiWebDriver.java:328)
	at org.xwiki.test.ui.XWikiWebDriver.waitUntilElementsAreVisible(XWikiWebDriver.java:315)
	at org.xwiki.edit.test.po.InplaceEditablePage.waitForInplaceEditor(InplaceEditablePage.java:89)
	at org.xwiki.edit.test.po.InplaceEditablePage.editInplace(InplaceEditablePage.java:52)
	at org.xwiki.edit.test.ui.InplaceEditWithAnnotationsIT.editInplaceWithAnnotations(InplaceEditWithAnnotationsIT.java:77)