Any ideas @Marco_Liberati ? I will have to open a support ticket if not.
We also see this error:
"type":"log","@timestamp":"2021-04-13T12:50:48+00:00","tags":["error","plugins","reporting","printable_pdf","execute-job","kng0v4hw00060534945dwt94","kng0v4hw00060534945dwt94"],"pid":6,"message":"TimeoutError: waiting for selector `.application` failed: timeout 60000ms exceeded\n at new WaitTask (/usr/share/kibana/node_modules/puppeteer/lib/cjs/puppeteer/common/DOMWorld.js:482:34)\n at DOMWorld.waitForSelectorInPage (/usr/share/kibana/node_modules/puppeteer/lib/cjs/puppeteer/common/DOMWorld.js:415:26)\n at Object.internalHandler.waitFor (/usr/share/kibana/node_modules/puppeteer/lib/cjs/puppeteer/common/QueryHandler.js:31:77)\n at DOMWorld.waitForSelector (/usr/share/kibana/node_modules/puppeteer/lib/cjs/puppeteer/common/DOMWorld.js:313:29)\n at Frame.waitForSelector (/usr/share/kibana/node_modules/puppeteer/lib/cjs/puppeteer/common/FrameManager.js:842:51)\n at Page.waitForSelector (/usr/share/kibana/node_modules/puppeteer/lib/cjs/puppeteer/common/Page.js:1285:33)\n at HeadlessChromiumDriver.waitForSelector (/usr/share/kibana/x-pack/plugins/reporting/server/browsers/chromium/driver/chromium_driver.js:146:34)\n at HeadlessChromiumDriver.open (/usr/share/kibana/x-pack/plugins/reporting/server/browsers/chromium/driver/chromium_driver.js:96:16)\n at processTicksAndRejections (internal/process/task_queues.js:93:5)\n at openUrl (/usr/share/kibana/x-pack/plugins/reporting/server/lib/screenshots/open_url.js:26:5)"}
{"type":"log","@timestamp":"2021-04-13T12:50:48+00:00","tags":["error","plugins","reporting","printable_pdf","execute-job","kng0v4hw00060534945dwt94","kng0v4hw00060534945dwt94"],"pid":6,"message":"Error: An error occurred when trying to open the Kibana URL. You may need to increase 'xpack.reporting.capture.timeouts.openUrl'. TimeoutError: waiting for selector `.application` failed: timeout 60000ms exceeded\n at openUrl (/usr/share/kibana/x-pack/plugins/reporting/server/lib/screenshots/open_url.js:33:11)"}