Resolution: Works As Intended
Minecraft 14w06b, Minecraft 14w07a, Minecraft 14w11b, Minecraft 14w17a, Minecraft 14w18a, Minecraft 14w18b, Minecraft 14w19a, Minecraft 14w20b, Minecraft 14w21b, Minecraft 14w29b, Minecraft 14w32a, Minecraft 14w34d, Minecraft 1.8-pre1, Minecraft 1.8-pre2, Minecraft 1.8-pre3, Minecraft 1.8, Minecraft 1.8.1-pre1, Minecraft 1.8.1-pre2, Minecraft 1.8.1-pre3, Minecraft 1.8.1-pre4, Minecraft 1.8.1, Minecraft 1.8.2-pre1, Minecraft 1.8.3, Minecraft 1.8.4, Minecraft 1.8.7, Minecraft 1.8.8, Minecraft 15w33b, Minecraft 15w33c, Minecraft 15w35b, Minecraft 15w44b, Minecraft 15w45a, Minecraft 15w46a, Minecraft 15w47a, Minecraft 15w47b, Minecraft 15w49a, Minecraft 15w49b, Minecraft 15w50a, Minecraft 16w06a
(UNRELATED to my other ticket about witches, MC-48374.)
Nearly every hostile mob I've seen (since the 14w06a snapshot) did not notice me at all, even when I'm standing idle within their aggro distance, for about a minimum of half a second, to a maximum of about six.
1.) Look for or spawn any mob that is initially hostile, besides all mobs I listed below.
2.) If you are in creative, switch to survival.
3.) The mob will take slightly longer to notice you then it would, with slight time variations each time.
The following mobs do not experience this issue:
-All neutral mobs (Enderman, zombie pigman, wolf, spider and cave spider (daytime), wither boss itself)
-Wither boss side heads
-Ghasts (They can't see you until you get almost eye level with them, but when you do they immediately shoot, I made another ticket about this)
The following do experience this issue:
-All other initially hostile mobs (Zombie, creeper, blaze, guardian, silverfish, shulker, etc.)
NOTE I would like to note that it appears to affect mob-to-mob interactions as well. Tested with iron golems, snow golems, and mobs that now attack iron golems. That is, all of them have a short time before noticing each other. Happens with zombies vs. villagers and guardians vs. squids. They react as they would with the player.