Theme issues for new UI

This is the rendering for /ui,

This is same site but /ui-v1

Any ideas what might cause the difference in render? Not too bothered about the edit controls but the grid column headers are unreadable

Nope never seen this before, does it still happen in incognito mode or a different browser?

I’m assuming it’s an old .css cache or browser extension. Did you do a full refresh? (e.g. Ctrl+Shift+F5) if that doesn’t resolve it, try opening Dev console and check disable cache.

Try toggling between browser dark/light mode. I think tailwind applies css based on the browser mode.