[O] [BUG?] is [org-image-actual-width] deprecated? setting it in config crashes emacs?

[Xebar Saram]

Hi all 

after bisecting today i discovered today that the thing the kept crashing emacs was this variable `org-image-actual-width` which was set this way in my config

(setq org-image-actual-width '(400))

did i not define it correctly? and if so why is it crashing emacs when i load a org file with images and open a header that will present such an image?

attached is a backtrace i created when the variable was on

thx

Z

org_BT.txt
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