I was playing survival on my world and I think since the latest update there are mob sounds everywhere, like creeper, zombies, skeleton, witch, etc. I am not in a cave and it is the day, went to search for the mobs but can't find them. The sounds get repeated very often and very loud like they are close to me. After this happened, I also can't enter the nether, I stand in the portal but nothing happens. Before the sounds I still can enter the nether.