there are multiple ways to implement vanities, where/how did you create it? Did you use sling:vanity or sling:redirect?
I just tested on a we-retail page via page properties(sling:vanityPath) and it shows in console as expected.
On '/content/we-retail/us/en.html', I added '/content/we-retail/us/ca' as vanity in page properties. It appears in jcrresourceresolver and when I test localhost:4502/content/we-retail/us/ca, it redirects to '/content/we-retail/us/en.html'
did you test it via "Resolve" button on /system/console/jcrresolver?