Hey team, long time reader, first time poster. We have a weird issue ever since upgrading to Kibana and elasticsearch 7.7.1. What we'll see is sometimes the UI(doesn't matter on module, could be Discover, Dashboard, Management etc) will sit on the Kibana loading screen for as long as 15 seconds before loading the page. Any subsequent requests are fast once the page is loaded so it doesn't appear to be a data issue but a UI issue. We see multiple .js bundles taking a few seconds each during this time.
On times where the page loads quickly it does not download the bundles in the attached screenshot. Are these items sometimes cached and sometimes not? What can I check to see why the UI is slow to load initially?
We did not have this issue on 6.8.9 and have changed nothing on our kibana instance(t3.large).