LibreOffice "Locks up" erratically

Started recently, now getting progressively worse
Freezes just itself or locks up system forcing soft or hard reboot
LibreOffice on Ubuntu 18.04.3 LTS “Locks up” erratically
During saving.
While pasting HTML text from web. Freezes for up to 5 minutes, then does paste, Then followed by a system lock up requiring a re-boot. Freezes then during restore files
soffice.bin is sleeping instead of running if only LibreOffice is frozen

Please test with a clean profile, Menu/Help/Restart in Safe Mode, can you edit your question to add the link to the problematic HTML text?