Format of font "Symbol" is not supported for new composite fonts

Hello, we are generating document which contains some information. For some reasons in some cases document save fails with the error “Format of font “Symbol” is not supported for new composite fonts” This happen absolutely randomly. And only in our prod environment. We have ttf fonts installed.
Also In generated document we don’t use font Symbol and I really have no clue where this error coming from. Any idea how to fix that?

@grinaypps

Could you please share your sample PDF document along with sample code snippet for our reference? We will test the scenario in our environment and address it accordingly.

We found issue, for some reasons issue happen when you store font in static variable. at first iteration everything works fine, but when second operation happen it throws that error, changing static fields to instance fields fixed the issue.

@grinaypps

It is good to know that your issue has been resolved. Please keep using our API and feel free to create a new topic in case you need any kind of assistance.