Error logs:
ProcessAssertion::acquireSync Fail(ed to acquire RBS assertion 'WebKit Media Playback' for process with PID=11722, error: Error Domain=RBSServiceErrorDomain Code=1 "originator doesn't have entitlement com.apple.runningboard.assertions.webkit AND originator doesn't have entitlement com.apple.multitasking.systemappassertions)" UserInfo={NSLocalizedFailureReason=(originator doesn't have entitlement com.apple.runningboard.assertions.webkit AND originator doesn't have entitlement com.apple.multitasking.systemappassertions)}