After last upgrade settings was reset again and I Just solved in this way: mv ~/snap/libreoffice/256/.config/libreoffice/4/user/ ~/snap/libreoffice/256/.config/libreoffice/4/user.orig
cp -av ~/snap/libreoffice/254/.config/libreoffice/4/user/ ~/snap/libreoffice/256/.config/libreoffice/4/
Cheers
After last upgrade settings was reset again and I Just solved in this way: libreoffice/ 256/.config/ libreoffice/ 4/user/ ~/snap/ libreoffice/ 256/.config/ libreoffice/ 4/user. orig
mv ~/snap/
cp -av ~/snap/ libreoffice/ 254/.config/ libreoffice/ 4/user/ ~/snap/ libreoffice/ 256/.config/ libreoffice/ 4/
Cheers