Officially I believe this is a bug, not sure whether I should post here or the help forum. I was learning Gardening 4 and then switched my learning when the new skills were released recently. Have just resumed the Gardening learning and it tells me I am still learning super fast! This is a good for me of course, however it does say that if you switch skill learning you will lose the speed. i have kept mine : ) : ) : ) : )