MathType How to eliminate the black triangle in the summation symbol

When using the MathType mathematical formula editor to edit the formula, sometimes there will be mathtype mathematical symbol anomalies, not displayed correctly, but also not garbled, such as the MathType summation symbol is shown as the black triangle, in this case how to solve it?

If you have any questions, you can go directly to: http://www.mathtype.cn/wenti/qiuhe-fuhao.htm

Here's how to fix it:
1. Open the MathType Math Formula editor and select the symbol that displays the exception.
2. Select "Style"-"definition" and the "Greek symbol", "u.c. Greek" and "symbol" are all set to "symbol" in the popup dialog box. The MathType summation symbol is displayed as normal.

Set the font of symbols to symbol in style--definition

MathType Symbols in the display is not correct, but not garbled, generally speaking, font settings are out of the question, incorrect font settings, some mathematical symbols are not displayed correctly.
the above content to introduce the MathType summation symbol display exception solution, the setting method is very simple. I believe that can help everyone to solve the problem, for the MathType mathematical symbol setting problem, the font is generally set to the symbol format. To learn more about the MathType formula font or about mathtype download information, you can go to MathType Chinese official website.

MathType How to eliminate the black triangle in the summation symbol