Libre Office 7.1.3 portable version is crashed when open a docx file in Windows 7.
And It cannot send crash report.
Libre Office 7.1.3 only work good in Windows 10.
Libre Office 6.4.7 portable version work good in both Windows 7 and 10 but it doesn’t have select heading feature like Libre Office 7.1.3.
And what is your question?
It is my bug report
This site is not to report bugs - it is about users of LibreOffice to answer questions of other users of LibreOffice. Please take a minute and read this Introduction - Bugs and what it states about where bug reports should go to.