We’re using GroupDocs.Conversion 26.1 currently, and we’ve noticed an inconsistency when converting specifically ODT word processing documents to PDF. If the document has double strikethrough formatting, is not accounted for in the result document. We observed that it is accounted for when converting from DOCX to PDF with the following document.
double strikethrough.docx (14.8 KB)
Unfortunately I am unable to upload .odt documents, but I have been able to reproduce this by saving the provided document as an ODT file type.
Please let me know if there are other details I can provide to assist.