Open attachment 92515 [details] from bug 73873, a DOCX with table and chart in header and footer, save it back to DOCX, then try opening it in Word: it will fail. Observed using LO 26.2.0.0.alpha0+ (2f5df988923560bcc0f822c9db39f6ccab0cc5a1) / Windows. This was OK until the following commit in 7.2: https://git.libreoffice.org/core/commit/88e6a1bfeac86e0c89d2ff08c908c2b5ae061177 author Daniel Arato (NISZ) <arato.daniel@nisz.hu> Fri Feb 05 12:07:48 2021 +0100 committer László Németh <nemeth@numbertext.org> Tue May 04 19:14:22 2021 +0200 tdf#69635 DOCX: export hidden (shared) headers/footers