If a try to open LibreOffice or any document (spreadsheets, presentations, written or .doc files), it will atempt to start the aplication and just exit it with no error before starting.
In Terminal: Just create folder
copy files from
change owner group, and permissions than run libreoffice
Open up a terminal and run the following command:
That way you will get output from the start in your terminal and most likely an error message that gives at least a hint. If you don't see what the problem is right away post the output here.
For other terminal options try "libreoffice --help".