Copperhead is APN issues on nexus 6p

I have tried the following fixes to no avail: removing and reinserting the sim, flashing an APN zip, rebooting the device in airplane mode, using the hspa dialer to edit the APN, rooting the ROM and editing the APN files. Nothing has worked. Any help would be appreciated. When I use an app to get to my APN settings it says APN settings are not avaliable to this user even though I am the user account holder. Dev says same as aosp is how you fix APN whatever that means.