We attempted to run an unattended install for the Windows Client 10.4.1 on a workstation that currently is running Windows Client 10.3.1 and it did not run.  This is the log file that was created:

[PID: 18284] 2019-12-05  Laserfiche Setup (C:\Program Files (x86)\LANDesk\LDClient\sdmcache\packages\Software\Laserfiche\WindowsClient\SetupLf.exe) Log
[PID: 18284] 10:48:01.209  Setup.exe was run with the command line:  /silent /iacceptlicenseagreement /log c:\temp1\laserficheAdminlog INSTALLLEVEL=400 LANGPACK=en
[PID: 18284] 10:48:01.209  Beginning silent installation.
[PID: 18284] 10:48:01.209  Beginning MSI update check.
[PID: 18284] 10:48:01.209  No MSI update was necessary.
[PID: 18284] 10:48:01.236  Version 10.3.1.502 of Laserfiche Administration Console is installed (major upgrade).
[PID: 18284] 10:48:01.241  Version 10.3.1.293 of Laserfiche Snapshot is installed (major upgrade).
[PID: 18284] 10:48:01.254  Version 10.3.1.502 of Laserfiche Windows Client is installed (major upgrade).
[PID: 18284] 10:48:01.266  Version 10.3.1.505 of Laserfiche Office Integration is installed (major upgrade).
[PID: 18284] 10:48:01.277  Version 10.3.0.245 of Laserfiche PhotoDocs is installed (major upgrade).
[PID: 18284] 10:48:01.283  Version 10.3.1.306 of Laserfiche Scanning is installed (major upgrade).
[PID: 18284] 10:48:01.408  Beginning prerequisite install.
[PID: 18284] 10:48:01.412  Beginning main install.
[PID: 18284] 10:48:02.432  Main install failed. Canceling setup.

Can we not perform client upgrades with the unattended install method?  Are we missing a parameter?