Heart is being duplicated on Textbox, RichTextBox, but not on TextBlock Controls

[LennoxP90]

I have this text in my Notepad++ loaded into the controls
I ♥ | ❤️ coding

The first heart is duplicated on the TextBox and RichTextBox controls

but displays completely fine in the TextBlock control (problem is I need to be able to copy the text displayed in the control)

When the Textbox text is copied into clipboard is:
I ♥♥ | ❤️ coding

[LennoxP90]

Any ideas on this?

[LennoxP90]

do we have any idea on the issue?

[LennoxP90]

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