I have no idea if this is related.
But we’re also having issues with WP & cloudfront after upgrading to 6.3
We use Supercache not W3TC
We’re not using S3 – using cloudfront for entire website.
New posts are on the cloudfront website, but the Home page and all category pages are stale. And invalidating them is not refreshing them.
The origin works perfectly.
So either AWS is having some kind of issue
Or 6.3 is causing issues but weird that’s it’s only showing for cloudfront.