Hi,
Ive got a bug similar to this https://theme.co/apex/forum/t/custom-404-plugin-not-working-with-custom-headers/8222/3
except that when I create a custom 404 page it seems to work fine. However, when I try to edit it with cornerstone, I get the conflict at the front end error message.
Is this a known bug and is there a workaround?
Thanks,

