I was playing on an official hardcore server, DE 1297, when I noticed my alcoholic tincture could not be drank or used in any items to disinfect them except for rags and bandages.
The text that usually shows on the bottom left corner saying "Hold LMB to drink" or similar when you hold tincture in your hand, doesn't show, and when you try to disinfect an item (let's say, some gloves) by combining them, you get the red box of nope, instead of the orange one to successfully combine.
Same for Iodine.
I asked on DayZ's discord and no one was able to answer why this was happening. I was advised to post this here so you could guys could say your justice.