Although there is a newer version available, I seriously doubt y'all have fixed this problem.
Your spellchecker/dictionary functions do not work. In every document I open, the same words I have already told to "Add to dictionary" are still flagged as misspellings no matter how often I tell Libre Writer to "Add to dictionary".
Why is not that specific dictionary automatically checked?
I found I had to check it.
Tools -> Options -> Language Settings -> Writing Aids: User-definded dictionaries Standard (all)
With a default new user profile it is empty and unused until you add a word to it, at which point it will show checked enabled. It can be unchecked/disabled (or deleted), but not clear why once a word had been added it did not remain enabled for you.
2) Why must we be subscribed to the mailing list to post questions on these forums?
I feel this is an unneeded requirement since I bookmark my question for later review for a possible answer.
We view subscription as a rather low hurdle to access these support channels.
Non-subscribed ML submission goes to moderation--and often to the bit-bucket.
If you want to be taken seriously, subscribe and hopefully also participate on the ML(s).