Google maps strip multi location not working

I am aware this should be very simple, I have followed all the steps:

  1. add google maps full width strip

  2. Connect it to a dataset

  3. Select the address field as the address and the title as the title


Then
4. Go into Manage locations
5. Select Multiple

however

  1. It wont let me delete the location (so i just edited it here)

  2. When published it ONLY shows the sample location, not any of the addresses in the collection its connected to.

I really don’t understand???
This should be able to be done with no code? Otherwise what is the point in connecting it to a collection?