Can't seem to be able to change a whatsapp contact name I'm having trouble editing a whatsapp contacts' name. I feel like I've tried EVERYTHING you can possibly try by googling; deleting the contact, playing around with whatsapp permissions, etc.
Also: if I'm on the contact page in whatsapp, clicking the dropdown-menu "edit" or "view in addressbook" simply doesn't work, so I think this is some kind of sync problem. I have this contact saved in my contacts list with the desired name, whatsapp just doesn't want to use that name apparently. I can even see the whatsapp "voice call", etc. options from the contacts screen in my contacts app.
In my contacts app (Nexus 5X, btw), when I select "All Contacts", there's only one version of this specific contact, under the correct name, so I don't think there's a duplicate with the wrong name, unless whatsapp has somehow hidden this duplicate.
Any insight is very appreciated, this is extremely infuriating!
Thanks!!!  

(How it seems to me: Whatsapp has some kind of hidden contact list somewhere that I can't view/edit, from which it keeps syncing the wrong contact name)
In Whatsapp, press the green icon (message) at bottom to go to "Select Contact" page.
Press the "3 dots" on top right side. Dropdown will show 4 options. Press "Refresh".
Done.