1. Go to System Preferences
2. Go to Keyboard Option > Input Source
3. Click on + and select your language profile (In my case it is Italian)
4. Click on Add
5. Select your previous language profile (In my case it is ABC)
6. Click on - (Only your language profile should be there)
I recently installed macOS Mojave on my Dell Vostro 15 3558 with the awesome guides on this forum, everything is working absolutely fine.
The issue is that it is showing incomplete Model Identifier in System Report