False error message when VM specified with a -Prefix

[nkomarov]

I want to back up a specific VM, I give its full name using a command with parameters:

powershell.exe -ExecutionPolicy Bypass -File "F:\WindowsImageBackup\scripts\HyperV-Backup-Utility-251014\Hyper-V-Backup.ps1" -BackupTo "F:\Hyper-V\VM-Backups" -Prefix "BackupTestVM01" -CaptureState CaptureSavedState -Compress -Sz -Keep 14 -L "F:\WindowsImageBackup\logs" -LogRotate 30

I receive an error message in red telling me following.

2025-10-15 16:40:20 [ERROR] With a VM list file configured, -AllVMs and -Prefix will have no effect.

After that, the VM is backed up successfully.

But I haven't configured any VM file list!

I believe, there should only be an error message shown if there was no VM found with this prefix found or if no Prefix has been specified at all.