Compass doesn't lock onto lodestone below y=0

It appears that lodestone do not work below y=0. I tested, and it worked fine at y=5, but did not work at y=-25.

 

I had a compass and I right clocked the lodestone with it and it was shown in the subtitles that it locked on, yet I did not get and enchanted version. I flew up to above y=0 and it then worked.(all done on creative, large biomes).