I cannot breed a donkey and a horse to get a mule. They simply ignore each other.
Horse on Horse works fine.
Donkey on Donkey also works fine.
I tried both golden apples as golden carrots.
I cannot breed a donkey and a horse to get a mule. They simply ignore each other.
Horse on Horse works fine.
Donkey on Donkey also works fine.
I tried both golden apples as golden carrots.
can confirm, if you are stating that the tamed horse and donkey just ignore each other, the description needs more detail.
I would also prefer if there was a video or screenshots.