Markers's label completely disappearing when decreasing zoom...
changing zoom level make the markers completely disappears... maybe at 15/20 just reduce the number of chars... and also at 14/20 13/20 .. after that maybe remove totally the label...
15/20 is the standard zoom that usually i use when editing.. and when i create a marker... the label is just not displayed... probably some user can think that markers are not working.