Testing Looker 6.24 today (12/6/2019) and the screen keeps refreshing itself. No errors in the log, just never-ending refreshing to the page you request. Looker 6.22 is not doing this and is fine.
Tested fresh install of both 6.22 and 6.24. 6.24 refreshed the screen continuously after setup page is complete and EULA page is complete. 6.22 is fine.
Tested on Chrome and Edge browsers.
No errors in the log. Continuous 200 HTTP response from the same page.