When you first load into a world, if you are looking at a quarry's mining head (but not the frame), it will not appear visually. The blocks will still break, but the head will not appear. It does appear once you look at the frame, however.

Screenshots

Version 7.99.4 | MC 1.11.2

Mods

Specs

seems this issue was overlooked but its not heapening from what i see so most likely it's optifine messing with things