If you downloaded DisplayFusion 12.0 and are having issues with languages please re-download and re-install. We have repacked the release as 12.0c with the languages fixed.
Thanks for the instructions. I was able to get it to switch however it requires me to click on "Keep changes". Is there a way to not ask this and always keep? Also to add to this, I am seeing a different color profile on my secondary monitor than before. Not sure how to change that.