Screen Tearing only in Shipping mode

I’m adjusting screen resolution and size with blueprint function Execute Command
like r.setRes number*number and FULLSCREEN. And it works well in debug mode and development mode.
The problem occurs in Shipping mode. In Shipping mode, Screen Tearing is severe, and VSYNC cmd does not work either.

Any one knows how to solve this?
Please help…
I’m considering export as an Development version, but I’m afraid hack or side effect.

Sorry I solved this problem with nvidia graphic card option. In NVIDIA Setting, I turned on VSYNC option and now there is no problem. so I Changed the state.