Problem using HUION inspiroy Q11K press keys in Corelpainter 2017

Hi,

I have a HUION inspiroy Q11K drawing tablet, and for some reason some of the press keys I have set don't work in corelpainter. I have set E (rotating) as one press key, but it doesn't do anything. I've tried the usual restart etc. thing but nothing changes. Other press keys work. Has anyone else had the same problem?