I try to open LibreOffice and I get:
/usr/lib/libreoffice/program/soffice.bin: symbol lookup error: /usr/lib/libreoffice/program/libmergedlo.so: undefined symbol: ZN11LanguageTagC1ERKS
This was after I added the LO PPA and try to install the latest version. Same error happened then, so I removed all the LO packages and went back to the Ubuntu version.