Most of the problem has been resolved. :D
SLI problem could be resolved perfectly.
Lag has disappeared.
If bottleneck-free environment, 4K60fps is possible.
There is a lot of change, so there may be a new bug.
Almost all crash problem can be evaded by "Delay Hook".
"Enabled Multi Device Processing" option does not work correctly with SLI by the driver of the bug.
Please wait a moment a little more about DirectX12 and mp4.
ver2.0.129 (2015/05/09)
FIX: The problem of compatibility.
FIX: When a new profile is created, the operation to copy the default settings.
FIX: In the case of DXGI_FORMAT_R10G10B10A2_UNORM format, the bug which can't be processed in PNG/JPG.
MOD: All capture codes.
MOD: All rendering codes.
MOD: Advanced Setting.