If a layout is created on a computer that includes a Postscript font element, and then subsequently opened on a computer that does not have this font installed, the resultant export file may have invalid font names. Errors may occur when opening the file.
The missing Postscript font is erroneously encoded in the export file, and as a result the remaining fonts in the file are defined incorrectly.
Use the right-click > Convert to Graphics function, then the right-click > Ungroup commands to ungroup grouped elements such as legends.
The Properties dialog will now display the correct Truetype font name. If it does not, go back and repeat steps 3 and 4, being sure to change the selection to another font before selecting the desired font. Once the properties display is correct, click OK to finalize the changes.