This also applies for random natural spawning (without a spawner). On grass on a mushroom island Mooshrooms do spawn - On mycel they do not. Definitely a bug.
I have used the search function, but did not find it. And I don't think that it really is a duplicate, because the bug I addressed is about the random spawning, not about spawner-spawning.
And they definitively are randomly spawning on grass in a mushroom island biome. I tried that. You will have to wait some time to see that, because the random spawning is very slow.
How it still can be reproduced in 18w46a:
[media]Place blocks in the following shape
Surround it with (full) blocks so that the lower slab is in full darkness
The top of that lower slab should now be dark but it is still bright
So I think this bug should be reopened
Not completely fixed (18w46a):
[media]This also applies for random natural spawning (without a spawner). On grass on a mushroom island Mooshrooms do spawn - On mycel they do not. Definitely a bug.
I have used the search function, but did not find it. And I don't think that it really is a duplicate, because the bug I addressed is about the random spawning, not about spawner-spawning.
And they definitively are randomly spawning on grass in a mushroom island biome. I tried that. You will have to wait some time to see that, because the random spawning is very slow.