The symbol in the Formula editor MathType in Word shows an exception, "arc" cannot be displayed, ARC display box

Some of the symbols in Word's MathType display an exception, such as "arc Up", which appears as a box.

The solution is to:

In the MathType folder Mathtype\fonts\truetype find Mtextra.ttf and Mt Extratiger.ttf (cracked version free software free), copy to Windows\ In the Fonts folder (open as: Control Panel--fonts). If the system prompt already exists, replace the original file.

Unresolved issues:

In Word 2013, when you convert to PDF by using Save As, the arc symbol above is still lost and is not lost until print is in PDF format. I can not solve the problem, if any Daniel know the words let the message to inform, thank you.

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The symbol in the Formula editor MathType in Word shows an exception, "arc" cannot be displayed, ARC display box