The tile text is a text property, not an HTML property. Thus, it does not allow new lines (or any HTML for that matter). They are converted to text (i.e., special characters like '<' are converted to entities).
What I can suggest are the following ideas:
- Consider using a ContentTemplateTile where you can put the desired HTML in a control (Literal or Label, for example). This will let you generate the desired layout in the tile.
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