During a deployment of a specific patch, an error 33 occurred and the patch failed to get installed.
From the logs with debugging enabled:
[2015-08-21.17:38:56][kpatch:PatchTraceFn ] File [C:\ProgramData\Microsoft\Windows Defender\Definition Updates\{C230BDFD-C482-4194-877C-8ACE36229FB3}\mpasdlta.vdm]
[2015-08-21.17:38:56][kpatch:PatchTraceFn ] Version Found: [1.197.1168.0], Check Against: >= [1.203.2775]
[2015-08-21.17:38:56][kpatch:PatchTraceFn ] Version information NOT within specified range
[2015-08-21.17:38:56][kpatch:DeployPatch ] DeployPatch: patch is applicable and is not installed...
[2015-08-21.17:38:56][kpatch:_DPmsg ] DeployPatch: Deploying package 23DE8B33-B964-405A-B3F4-D6E4570DA84B for patch C:\ProgramData\Dell\KACE\patches\23DE8B33-B964-405A-B3F4-D6E4570DA84B.plp for signature C:\ProgramData\Dell\KACE\patches\Windows Defender Definition Update 1.203.2775.0 (August 19, 2015).pls
[2015-08-21.17:38:56][kpatch:DeployPatch ] DeployPatch: patchlink deploy flags: -q -PLNP
[2015-08-21.17:38:57][kpatch:_DPmsg ] DeployPatch: Patch installation error=33 for signature C:\ProgramData\Dell\KACE\patches\Windows Defender Definition Update 1.203.2775.0 (August 19, 2015).pls package 23DE8B33-B964-405A-B3F4-D6E4570DA84B
[2015-08-21.17:38:57][kpatch:WriteKpatchOutput ] pls='C:\ProgramData\Dell\KACE\patches\Windows Defender Definition Update 1.203.2775.0 (August 19, 2015).pls' success=FALSE error=33 needToRebootNow=FALSE needToRebootLater=FALSE opFile='C:\ProgramData\Dell\KACE\kpatch.out isManualPatch=FALSE'
[2015-08-21.17:38:57][kpatch:WriteOutput ] WriteOutput() writing to file: 'C:\ProgramData\Dell\KACE\kpatch.out' contents: 'patchPkg=23DE8B33-B964-405A-B3F4-D6E4570DA84B.plp,success=0,error=33,rcode=0,rdesc=,rebootnow=0,rebootlater=0,ismanualpatch=0,