I’ve send a ticket this is the answer :
I hope it’s gonna be fix soon. 
I’ve also put a ticket in and received the same response as @ManaTheChild hopefully this resolves soon or at least becomes listed as a known bug with some kind of workaround.
bump for relevance
Update: The bug also happens in AMD Ryzen processors.
I traded a notebook with Intel Core i5 for a desktop with the new Ryzen just to play Tree of Savior better, but it got WORSE. This bug breaks the immersion more than low FPS…
It seems that Tree of Savior is really not 100% compatible with AMD platforms (CPUs and VGAs).
Sprite errors with AMD CPUs and graphic corruptions with AMD VGAs.
It’s clearly to me that TOS devs created the game only on Intel CPUs with Nvidia VGAs only and never tested the game with AMD platforms. This is so true that these bugs exist since the beta test and never got fixed.
Hope for a fix for these bugs soon.
@STAFF_Amy @STAFF_Yuri @STAFF_Ethan @STAFF_Ines @STAFF_Letitia @GM_Francis
I found what seems to be a fix. I haven’t tested it long, but everything’s been fine for the last 20 minutes.
http://steamcommunity.com/app/372000/discussions/0/152392549357954695/
Edit:
After playing for about 3 hours, I can confirm I’ve had no issues using the fix above. Funny that the post was made about 6 months ago.
OMG it worked I can finally not feel like I’m being watched by my own characters
Thx god ! Finaly after 666 years i can enjoy the game without that tilting animation Jesus Christ
I have the same problem 31/05/2017
System
-CPU: AMD FX-6300
-RAM: 8GB
-Graphics Card: ATI Radeon HD6670 1Gb GDDR5
-Motherboard: Asus M5A78L-M LX/BR
-Storage: Samsung Hd502hj
-OS: Windows 10 Pro 64Bits
@STAFF_Amy @STAFF_Ines @STAFF_Yuri @STAFF_Letitia @STAFF_Ethan
I started getting this today too, but only on my laptop that runs windows 10.
Also it infinitely scrolls down.
So if I open my inventory, it scrolls down super fast and I can’t even use my items. Same with anything else that has scrolling.
I don’t mind the creepy face, but when I can’t use an item like an EXP tome or Cookie, then it gets annoying. Not sure what the issue is. I have both keyboard, mouse and controller.
Happens consistently on new AMD CPUs too. Will it ever be acknowledged as a bug at least?
And it’s not just the head spazzing when you move, other character on screen have their heads pointed southwards if they stand diagonally.
It’s really sad in all honesty because this was going on since CBT apparently and nobody at IMC can be bothered to get an AMD machine to even look into the issue.
What’s the point of cute hats and costumes when the whole game looks this spooky and glitchy.
Download the Zoomy Plus Addon from the Addon Manager, then in-game type in chat:
/zplus rotate 46 38
This will rotate the camera by 1 degree getting rid of the head spazzing out, however you’ll have to do it everytime you log into the game, sadly it’s the only hotfix there is for this issue.
Kim-sama… I’m literally dying here…
So this is a bug still going from beta? Wow. I mean, it’s not gamebreaking, but it’s very upsetting…
It is pretty damn gamebreaking.
This game has nothing besides cute graphics and music and now I don’t even get the graphics part.
This is why the idea of using 2D planes for the heads was a mistake, if you ask me. You could’ve achieved the same aesthetic result with 3D meshes.