User interface and spelling dictionaries

[gizmovision]

I can not get the application to use any other User Interface Language other than English UK, there is no English US option in the installer. I also cannot change the user dictionary to English US it starts in English UK and tries to download the file but fails. I could download and install Croatian. Spanish is installed by default but I can't change it back to English UK or install English US as it wants to download those files and fails.
I have installed it twice with the first installer and downloaded another copy with the same results.

English US dictionary installer

English US dictionary installer fails

irish complete

limited to 3 files but I downloaded and installed the Irish Spelling dictionary.

[sven-l]

The user interface language is only available in English (UK), not in English (US). We couldn't reproduce the spell checking issue here on several Windows 10 machines.
Please uninstall FlexiPDf from your machine, re-start it and install FlexiPDF 2019 again.