Unrar fails when accents are present in filenames

Running unrar x /path/to/file . will decompress the files with no encoding errors.

Apparently the issue is caused by the Archive Manager. (I'd really like to be able to use Archive Manager and the GUI, so if someone has a better answer I'll gladly accept it!)

I had a similar problem with a .rar file that contained non-standard Unicode symbols in the filenames. Solved it like this:

sudo apt install rar
rar e filename.rar