Data is wrong when setting align right and printing document in C#

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C#

print

NET6.0

I have PrintPageEvent to print document in C# and I want to print text with align right. When the text starts with character, it prints normal. But if the text starts with number, data after printing is wrong.

For example:
Text to print: "Print a text" => Result: "Print a text"
Text to print: "10 test 8" => Result: "test 8 10"

What's wrong? Does anyone know it.

What I have tried:

I use this code line to print string

StringFormat stringFormat = new StringFormat();
stringFormat.FormatFlags = StringFormatFlags.DirectionRightToLeft;
e.Graphics.DrawString("10 test 8", new Font("Arial", 5), new SolidBrush(Color.Black), 10, 5, stringFormat);

If I remove StringFormat from DrawString function (print left to right), the printing is right.