In this case, POI?11 comes first and you see the ?10 and #20 behind of #11. In our case, we have various POIs on the same line, which meas the #11 covers over #10 and #20 complately and the users cannot tap the #11 and #20.
Our idea to soluve this problem is to change the hight of each labels to be able to make the labels visible and clickable.
Nsmaibun