When navigating to Insights in the new UI, I get redirected to a 404 page.
Myself as well. I have filed a ZenDesk ticket asking for more clarification incase it is a permissions issue.
Same here. The old link works, but the link for Insights from the new UI just 404s.
I got a response on ZenDesk, they are aware of the issue. Disabling the new to bar UI does allow you to access the page.
This is now fixed for me.