Related gant chart tooltip and display category

Hi All,

Im facing the issue like when i hove my house on the milestone marker of gant chart its showing first value of milestone,first date of startdate,firstdate of enddate for all the milestone marker

I want to see respective miles when i hover on the marker
*and one more problem if i add any columns to the display category or measure category its repeating value since we have multiple milestone for a parent category

Could you please anyone help me on this