Corrupted language cache or partial installation. Solution: Go to Settings > Language > Select "English" > Restart > Re-select "Italiano" > Restart again. This flushes the cache.
: Launch the main application (Writer, Presentation, or Spreadsheets). Access Settings : Click the Settings icon (often a gear or a globe) located in the top right corner Switch Language : Select the "Switch Language" option from the dropdown menu. Select Italian : In the pop-up list, scroll to find Italian (Italiano) . If it is already downloaded, click wps office italian language pack top