I have written several documents without realising that I have had typing mistakes which had not been signalled by the automatic spelling check. I have set the default language to English (UK) and even explicitly set the document’s “All text” language to the same and even intentional spelling mistakes are not signalled. Changing to US English works, though clearly the differences are not acceptable and distracting. I have “completely removed” libreoffice-writer and reinstalled to no effect, and even tried restarting in safe mode with no change so I deduce that the English (UK) library does not wor for some reason.
The documents include job applications and it’s very embarrassing and possibly discounts me from consideration if I seem to be unable to check my documents!
I am using Ubuntu 18.10 (fully updated) with LibreOffice Version: 184.108.40.206
Build ID: 1:6.1.5-0ubuntu0.18.10.1
CPU threads: 8; OS: Linux 4.18; UI render: default; VCL: gtk3;
Locale: en-GB (en_US.UTF-8); Calc: group threaded