This is a minimal vimrc to reproduce this: https://gist.github.com/lkurylo/f6a20801b48133a71fac With the configuration for encoding, I must change the codepage (chcp 65001) before I launch vim in console.
I have no idea what can be wrong.
The same issues I have e.g. with the seoul256 theme. Don't know if this is a ConEmu issue or not.