Times New Roman font missing in LibreOffice Writer [duplicate]
Solution 1:
Probably something happened during the installation of the fonts, and the package appears installed, although the fonts themselves were not. Simply purge the package and re-install it:
sudo apt-get remove --purge ttf-mscorefonts-installer
sudo apt-get install ttf-mscorefonts-installer
A screen will appear, where you will have to accept the license agreement. Then the fonts will be downloaded and installed one by one.