Don't know what's wrong, but when I'm trying to start RX560 + R280 v0.21 is freezing or working with 0 S/s
v0.2 was stable for me
Hmm I did not test mixed GPU setup... tried two instances with one card each?
Edit: Looking over the code: it will be easy to simulate the old behavior ... (new code is very flexible)... I think I can do a simple switch to bring back the 0.2 way for Intel users and those AMD users where this caused less problems
