Most likely not a bug. Mobs spawn in 'packs' and are all spawned at the same time. You just lucked out with the spawning mechanics and it generated a pack with a pink sheep in it. Then when it was placing them, it just used that pack over and over. Next time sheep spawn in that area, you most likely won't get a pink one.
If I helped you in any way or agree in my ideas or posts, make sure you click that green arrow pointing up below my post or simply huggle me! I use 1.7.10 (Modded), so when I comment that I like a 1.8 mod, I will comment to downgrade to 1.7.10. I support no pics, no clicks. Suggestions that I think that are the best deserves a banner!
It is almost time to say goodbye to 1.7.10 because of the recent surge of big 1.9 mods.
Why MCreator sucks: jcm2606's file (doesn't open a new tab) He allows/welcomes anyone to link the file, so I put it here in my signature for people to know how MCreator functions. I thank jcm2606 (he's awesome) for creating the document/file and I'm just here to spread the word.
The Meaning of Life, the Universe, and Everything.
In my wolf den!
In my wolf den!
Every time I found a pink sheep while playing I would instantly box it in. One time I did that with wooden planks because I didn't have any fences on me or even a crafting table at the time. Somehow, a wolf killed the sheep through the blocks, and I knew they could do that with fences but not blocks. I was playing on console at the time and this happened before the xbox one edition even came out, so it was probably a glitch or something.