Upgrade from 2.4.8.5

[esciencepress]

Hi, I have been able to successfully upgrade to OJS 3.3.0.20 however, special characters on the text are not displaying correctly. I have gone through the post;

OJS 3 Special characters no longer show since upgrade from OJS2

We recently upgraded our OJS website ( thepolynesiansociety.org) website and the new webfonts available do not seem to support the extended font sets we need to display special language characters that are necessary. For example a with a macron (bar) over the top. I have set the basic template fonts e.g., Noto Sans etc and tried the others but none seem to put the macrons back (see latest issue page to see the problem). It is possible that I have to enable the extended latin subset fonts to s…

But no luck, please.