Created attachment 163421 [details] docx Updating index in bibliography damages it all.
Created attachment 163422 [details] Video of bug happening
On pc Debian x86-64 with master sources updated today, I could reproduce this. When opening the file, I noticed these kinds of logs: warn:xmloff:29475:29475:sax/source/fastparser/fastparser.cxx:1265: unknown element xsi:type http://www.w3.org/2001/XMLSchema-instance warn:xmloff:29475:29475:sax/source/fastparser/fastparser.cxx:1265: unknown element xsi:type http://www.w3.org/2001/XMLSchema-instance warn:xmloff:29475:29475:sax/source/fastparser/fastparser.cxx:1265: unknown element w15:val http://schemas.microsoft.com/office/word/2012/wordml warn:xmloff:29475:29475:sax/source/fastparser/fastparser.cxx:1190: unknown attribute vid={4A3C46E8-61CC-4603-A589-7422A47A8E4A} 0x82d0260:createUnknownChildContext:http://schemas.openxmlformats.org/officeDocument/2006/bibliography:b:Sources 0x82c98c0:start unknown element:http://schemas.openxmlformats.org/officeDocument/2006/bibliography:b:Sources ... warn:xmloff:29475:29475:sax/source/fastparser/fastparser.cxx:1265: unknown element w14:paraId http://schemas.microsoft.com/office/word/2010/wordml warn:xmloff:29475:29475:sax/source/fastparser/fastparser.cxx:1265: unknown element w14:textId http://schemas.microsoft.com/office/word/2010/wordml warn:sw.uno:29475:29475:sw/source/core/unocore/unotext.cxx:2187: Exception when setting property: IsWidthRelative. Message: relative width cannot be switched on with this property warn:sw.uno:29475:29475:sw/source/core/unocore/unotext.cxx:2080: Exception when getting PropertyState: CellHideMark. Message: CellHideMark /home/julien/lo/libreoffice/sw/source/core/unocore/unotbl.cxx:1016 warn:sw.uno:29475:29475:sw/source/core/unocore/unotext.cxx:2080: Exception when getting PropertyState: CellHideMark. Message: CellHideMark /home/julien/lo/libreoffice/sw/source/core/unocore/unotbl.cxx:1016 warn:sw.uno:29475:29475:sw/source/core/unocore/unotext.cxx:2080: Exception when getting PropertyState: CellHideMark. Message: CellHideMark /home/julien/lo/libreoffice/sw/source/core/unocore/unotbl.cxx:1016 warn:sw.uno:29475:29475:sw/source/core/unocore/unotext.cxx:2080: Exception when getting PropertyState: CellHideMark. Message: CellHideMark /home/julien/lo/libreoffice/sw/source/core/unocore/unotbl.cxx:1016 warn:xmloff:29475:29475:sax/source/fastparser/fastparser.cxx:1265: unknown element w14:paraId http://schemas.microsoft.com/office/word/2010/wordml warn:xmloff:29475:29475:sax/source/fastparser/fastparser.cxx:1265: unknown element w14:textId http://schemas.microsoft.com/office/word/2010/wordml warn:legacy.osl:29475:29475:oox/source/helper/storagebase.cxx:66: StorageBase::StorageBase - missing base input stream
Looks like a duplicate. Either you didn't search or I'm wrong about other bug. *** This bug has been marked as a duplicate of bug 89506 ***