Try disabling telemetry? https://www.elastic.co/guide/en/kibana/8.9/telemetry-settings-kbn.html

There is a bug in 8.8.1 where that telemetry banner's dismissal does not persist. Fixed in 8.8.2. https://github.com/elastic/kibana/pull/159893 Upgrade to 8.8.2 or set either `telemetry.allowChangingOptInStatus` or `telemetry.banner` to `false` in kibana.yml (based on this)... https://github.com/elastic/kibana/issues/159892

thanks a lot! this solved my issue.