They are weird things because they'll only appear when you're almost on top of them.
Yep, they are only coded to appear based on your avatars' proximity to them. I'm not really sure of the exact distance, but, past history indicates approximately 5 yds maximum, and it may be closer to 3 yds. This is very painstaking work, not cut out for the faint of heart, only those willing to go the distance. I do remain confident that with our new grid search technique, they will be found. Keep the faith , men.
Today & tomorrow, I'm movin' on to sectors FGHI 3&4. Good luck out there , fellers.