From Map to Widget

Hi, maybe you can help me having a similar problem but its a Map of Strings and when I try to populate a Textblock but it only renders the first Key/Value pair.
I get the map from an external function that I cant edit (Get Metadata Values as String For Face)

and the bind the result to Textblock

The Print String prints the Map as it should. So, how do I get around this and preferably as Text for styling purposes?