Both my OS and UI for Libreoffice are in English. I’ve recently met a problem when Libreoffice Writer continously modified the text with Autocorrect for the English UK language, while I’ve been writing in Polish. The document was set to the Polish language.
In this case it fixes the “i” letter to uppercase when it is standing alone, while in Polish it’s used as a conjunction meaning “and”.
I haven’t changed any program settings since installing it, so naturally deleting the user profile folder, thus resetting the settings, didn’t change a thing.
I’m on Windows 8.1 64-bit, Libreoffice 4.3.5.
I don’t know the current way to report bugs, since the Bug Submission Assistant is out of order and https://bugs.freedesktop.org has bug submission closed.