When trying to export a couple of PNGs and a PDF at once, some of the pngs just exists for one resolution. Also in the content.json. It seems to be a random number but nearly half. It was not depended on the position of the PDF in the list and also not depended on the number of PNGs, because when trying to export all without the one PDF it works fine.
Fix for the moment: Export all PNGs at once and then export the PDF.
When trying to export a couple of PNGs and a PDF at once, some of the pngs just exists for one resolution. Also in the content.json. It seems to be a random number but nearly half. It was not depended on the position of the PDF in the list and also not depended on the number of PNGs, because when trying to export all without the one PDF it works fine.
Fix for the moment: Export all PNGs at once and then export the PDF.