Stencil test does not work fine in all cases. I think this is what broke Worms also (same rev). No fix yet (in hardware mode).
http://www.emunewz.net/forum/showthread....365&page=2
http://www.emunewz.net/forum/showthread....365&page=2
Intel Core i7 6700k @ 4.5 ghz. / GeForce GTX 970 / 16 Gig Ram / Win 10