Mathtype eps equation symbols collapsed in InDesign

Related topic here:

According to wiris’s website,  “STIX fonts (and OpenType fonts in general) do not fully work in MathType”, so the issue seems to lie with MathMagic. This makes sense as EPS format doesn’t really support many of the special features of OpenType fonts

https://docs.wiris.com/en_US/mathtype-troubleshooting-faqs/mathtype-known-issues

Have you tried to open the EPS with Acrobat? Doing so will invoke Distiller and create a PDF file. If the fonts are properly available in the EPS, you should have a successful PDF. If not, the fonts are not properly included nor properly referenced in the EPS.

If you want, send me one and I can poke into it a bit.

-Brad

post this in the id forum, https://community.adobe.com/indesign-669

p.s. change your title to avoid a duplicate message problem.

Pls find my reply for each questions below:
Could you please confirm the exact version of InDesign you are using, along with your operating system details?
InDesign version: 20.5.3 & 21.4
OS: Windows 10 Pro Version: 22H2
 

As a test, could you also try exporting the equations from MathType as PDF instead of EPS (or convert the exported EPS files to PDF afterward) and then place the PDF into InDesign to check whether the symbols render correctly?
Not able to create direct pdf but used the option ‘Microsoft print to PDF’ the symbols render correctly, but the issue here is more white space around the equations and the equation part appears too dark compared to the surrounding text,  changed to CMYK black rather than 100% black refer screenshot below:

And also the font panel in InDesign appears as below:
 

Additionally, please confirm whether the issue is limited to these two fonts or if it also occurs with other OpenType or non-OpenType fonts.
The issue is with open type fonts and not with mathtype supported fonts.
 

If possible, and especially when testing with an older file, please try placing the same equation into a brand-new InDesign document as well to compare the behavior.

The same issue occurs when placed in the brand-new indesign document.
 

If required will DM you the equation files along with fonts.

EPS - PDF works fine and more white space around inline and display math equations also color is changed to CMYK rather than Black 

We are experiencing issues with MathType equations saved as EPS with the embedded STIXGeneral font for Greek characters. After placing them in InDesign, the equations appear as junk text or show missing fonts due to font embedding issues. Please see attached screenshots for reference. Please advise. 

Hi ​@dt0245d3009278,

Thank you for reaching out.

Could you please confirm the exact version of InDesign you are using, along with your operating system details?

As a test, could you also try exporting the equations from MathType as PDF instead of EPS (or convert the exported EPS files to PDF afterward) and then place the PDF into InDesign to check whether the symbols render correctly?

Additionally, please confirm whether the issue is limited to these two fonts or if it also occurs with other OpenType or non-OpenType fonts.

If possible, and especially when testing with an older file, please try placing the same equation into a brand-new InDesign document as well to compare the behavior.

Looking forward to your update.
Abhishek