You can't eat while looking at an Iron Door.
Also affects all other right-click actions.
VERY annoying.
Code analysis by @unknown in this comment
Linked issues
is duplicated by 55
relates to 7
Comments 26
I did some work with Iron Doors myself, and I found this:
It is possible to retain the door functionality while doing away with the right-click actions.
It crashes quite often, but maybe I did something wrong.
If I can do it, Mojang definitely can do it.
Working as intendend (See comment in MC-21433)
The fix causes weird behavior in 16w43a.
Instead of eating like normal, eating takes 3 times as long as normal. The eating animation stops after the normal lenfth, but the sound and particles continue. After this 3 times longer period, one food item is consumed and it's hunger and saturation applied once.
That's just lag and not specific to the current snapshot. I've seen the same in a video in 1.7.10. You are probably on a server. If you press tab (or whatever key you have for the player list), you see a network connection indicator that's not completely green. If you are in singleplayer, then you should look for lag sources on your internal server (permanently running machines, entities, etc.).
I guess it is because iron doors are handled as "doors" internally.
With wooden doors not eating/drinking/whatever makes sense because you right click the door to open it.
However since you can not open an iron door by right clicking it this should be changed for iron doors.