.NET Windows Form RichTextBox append text causes color inconsistency

This is a very unique problem I am facing.

In .NET 2.0, if you want to append formatted text (with font styles/color) into a rich textbox, you use this code :


richtextbox.SelectionFont = fontFromFontDialog;
richtextbox.SelectionColor = colorFromColorDialog;
richtextbox.AppendText("Some text");


the font and color are obtained from a color and font dialog.

For the first few times, the colors are correct. however if i keep changing font and colors, the colors get mixed up. If i select orange, it might appear blue on the richtextbox.

Anyone can give a solution? Really surprusing..

richtextbox.SelectionFont = fontFromFontDialog;
richtextbox.SelectionColor = colorFromColorDialog;
richtextbox.AppendText("Some text");
 
// keep looping this with different colors/fonts will give wrong colors

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