Problems with exporting otfs

I have experienced problems with exporting otf files from 4 fonts, others in the same family work just fine though. There is no error notification, it just takes forever (up to 30min and not ending) to export and doesnt seem to work.
I have read through the forum but couldnt find posts adressing an issue like this.
I would be happy for some help

Thanks Mirco

Do the font have a lot paths? Then try the Disable Subroutines custom parameter in the instance settings.

Yes indeed its a font with a lot of paths and it worked just fine with your advice.
Thank a lot Georg