Not a total noob here, but its been awhile since i had a nexus and im clearly missing a step when, but i cant figure out what.
Got the nexus 6p, unlocked bootloader, and set the phone up (fingerprint, accounts, etc)
Decided i wanted to install twrp, so booted into bootloader and ran command: fastboot flash recovery twrp.img
rebooted phone, and tried to go into recovery, its asking for pattern to decrypt phone. i enter pattern, and its unable to decrpyt.
i try booting back to OS, changing from pattern to pin, and still have the same issue. now twrp asks for a pin, but its still unable to decrypt.
so i try to start over, flash factory images (MHC19I), and try again. same issue. im sure im missing something simple, your help would be much appreciated.