@dr. Dodo
What potion did you feed, to which creature?

Edit

Also do you have any other mods that change/remap the vanilla\aberant dodo that are in the base game?

Hm ..I reworded the instructions a bit better on the workshop...

Each potion is specific to the variant, if you want a overseerdodo feed your vanilla dodo the overseer potion, but to revert back you cant feed the same potion it wont do anything, to change back to the variant you want youll need the potion for that dodo

example, to go back to vanilla dodo from any of the other dodos youll need the Dodo Potion(not one of the turkey/overseer/zombie etc potions)

I feed dodo the potions,but they suddenly disappear.I dont know why.

@xumounan

to my knowledge this behaviour is linked to a major Ark update that changed some functions that relates to spawning creatures in..its an old bug apparently from the genesis update.. i will look into it