Windows Store Certification FAILED!

Hey guys, I keep getting this error when running the WACK to certify my app in Windows Store. Please Help me get rid of this nasty error!
Specs:
Unity 5.6
VS 17
Win 10

Errors:
API OpenSemaphore in api-ms-win-core-synch…
API CreateSemaphore in api-ms-win-core-kernel

Switch to master configuration in VS.