Hello @andrucrypt
I`m having trouble with worksize setting.  I think it has begun after dotnet-hosting-2.2.1-win installation but nothing changed after I deleted it. Couple of days ago everything was fine and worksize was at 0/256. Now it is "x"/1024. --opencl-launch=256x0 setting makes it 0/1024. With --opencl-launch=256x64 worksize is 64/1024 and miner solves correct shares but my rig is not so stable so I need to make it 0/256 again somehow.
I could just reinstall OS but maybe there is an easier way?
http://prntscr.com/m9lcig