Error - No markers for managing the Location View

We are working on a problem in the location view, in the scenario when you mark many positions, they are not marked on the map in the view on the right side with markers corresponding to the colours of the rows. 

Overview screen: https://www.dropbox.com/s/1r7rbhe59ff20h4/2020-08-21_14-32-05.png?dl=0