Using Linux Mint 19 64-bit here.
I'm experiencing a bug in current LibreOffice versions (220.127.116.11, but it's apparently been around since 5.x.) A known good version with regards to this bug can be found at https://downloadarchive.documentfoundation.org/libreoffice/old/18.104.22.168/deb/x86_64/ .
So I downloaded LibreOffice_22.214.171.124_Linux_x86-64_deb.tar.gz from there and installed it using
dpkg, which worked fine, and without errors.
Launching 126.96.36.199 from a sibling directory this way works just fine.
What might be killing it? I found this in the syslog:
kernel: [ 137.651100] traps: soffice.bin general protection ip:7f2c6be910c0 sp:7ffd85092068 error:0 in libpangoft2-1.0.so.0.4000.14[7f2c6be89000+14000]