This is a new problem that began with upgrade to 24.8.4.2. I can no longer open docx documents that were apparently prepared with Spanish version of MS Word. My OS is Ubuntu 24.10. Only way I can open documents is to take them to PC running latest US version of office, and save them as *.odt. Docx documents that opened with earlier versions of LO Writer, no longer work, and cause LO Writer to crash immediately.
Bugs should not be reported here, see This is the guide - How to use the Ask site? - #3 by Hrbrgr
and How to Report Bugs in LibreOffice - The Document Foundation Wiki
Can you attach a sample file here?