One of my author servers had the login page change from /libs/cq/core/content/login.html to /libs/crx/core/content/login.html and I'm trying to figure out why. Nothing else on the server has changed, other than content being added and components under /apps being modified. I've seen mentions of a JVM upgrade causing similar issues, we haven't changed the JVM on this server.
I checked for a vanity url on the two login.html pages (cq and crx), and neither one has a vanity url specified, although both have the sling:VanityPath mixin type. But this is identical to other servers where the login page is normal, and no one has touched that in any case.
Is there anything else I should look for?