2020-03-10 09:21:31, Info CBS Exec: Staging Package: Package_2107_for_KB4534310~31bf3856ad364e35~amd64~~6.1.1.9, Update: 4534310-5591_neutral_LDR, PinDeployment: amd64_39a1dbd9db5f02b9b547be59dcc6c34b_31bf3856ad364e35_7.6.7601.24542_none_63a49f104513747f
2020-03-10 09:21:34, Info CBS Calling client to resolve source, cannot find file 'MsSpellCheckingFacility.exe' at path: \\?\C:\Windows\SoftwareDistribution\Download\87e1d6a1c450fee02f78821d4b9192bf\amd64_microsoft-windows-s..-downlevel.binaries_31bf3856ad364e35_6.3.9600.19002_none_5fbedab2ff32ee2b\MsSpellCheckingFacility.exe
2020-03-10 09:21:34, Error CBS Exec: Failed to pre-stage package: Package_2107_for_KB4534310~31bf3856ad364e35~amd64~~6.1.1.9, file: MsSpellCheckingFacility.exe, source: \\?\C:\Windows\SoftwareDistribution\Download\87e1d6a1c450fee02f78821d4b9192bf\amd64_microsoft-windows-s..-downlevel.binaries_31bf3856ad364e35_6.3.9600.19002_none_5fbedab2ff32ee2b\MsSpellCheckingFacility.exe, sandbox: (null) [HRESULT = 0x800f081f - CBS_E_SOURCE_MISSING]
2020-03-10 09:21:34, Info CBS Failed to gather all required files. [HRESULT = 0x800f081f - CBS_E_SOURCE_MISSING]
2020-03-10 09:21:34, Info CBS Failed to gather all missing files for package: Package_for_RollupFix~31bf3856ad364e35~amd64~~7601.24544.1.9 [HRESULT = 0x800f081f - CBS_E_SOURCE_MISSING]
2020-03-10 09:21:34, Info CSI 0000000e@2020/3/10:13:21:34.530 CSI Transaction @0x316c00 destroyed
2020-03-10 09:21:34, Error CBS Failed to pre- stage package: Package_for_RollupFix~31bf3856ad364e35~amd64~~7601.24544.1.9 [HRESULT = 0x800f081f - CBS_E_SOURCE_MISSING]
2020-03-10 09:21:34, Info CBS Perf: Stage chain complete.
2020-03-10 09:21:34, Info CBS Failed to stage execution chain. [HRESULT = 0x800f081f - CBS_E_SOURCE_MISSING]