Azure Maps shows zero/blank values

Hi everyone, 

hope this finds you well. 

I recently tried to use Azure maps instead of Bing maps. I noticed one malfunction : 

- even if the value is blank/empty the Azure maps displays a bubble on the location, as if the value was not null (photo below). this is quite confusing I think. 

- if the value is = 0, azure maps also displays a bubble on the location (photo below)

I would like Azure map not to show anything when value = 0 or is blank, like Bing Maps does (photo below). 

has anyone solved this ? 

thank you