Output in CLI different that what is saved in log file ?!

Hi,

I have the below command which shows errors, both in the Shell, and also logs into a log file.

Function errMessage
{
param([Parameter(Mandatory=$true)][String]$err)
Write-Warning -Message $("`n$(getDateTime) $err`n" + $_.Exception.Message + $_.CategoryInfo + "$($_.InvocationInfo.ScriptLineNumber): $($_.InvocationInfo.Line)") *>&1 | Tee-Object $logFilePath -Append
}

The error appears fine in the Powershell window…

WARNING:
WARNING: 19 Mar 2024 10:51:55:57 Adding Task To Scheduler Failed
WARNING: Cannot create a file when that file already exists.
WARNING: ResourceExists: (PS_ScheduledTask:Root/Microsoft/...S_ScheduledTask) [Register-ScheduledTask], CimException525:
WARNING: Register-ScheduledTask VLABADScript -InputObject $taskvlabad -ErrorAction Stop | Out-Null
WARNING:

But saves as below in the log file.

1 9 M a r 2 0 2 4 1 0 : 5 1 : 5 5 : 5 7 A d d i n g T a s k T o S c h e d u l e r F a i l e d
C a n n o t c r e a t e a f i l e w h e n t h a t f i l e a l r e a d y e x i s t s .
R e s o u r c e E x i s t s : ( P S _ S c h e d u l e d T a s k : R o o t / M i c r o s o f t / . . . S _ S c h e d u l e d T a s k ) [ R e g i s t e r - S c h e d u l e d T a s k ] , C i m E x c e p t i o n 5 2 5 : 
R e g i s t e r - S c h e d u l e d T a s k V L A B A D S c r i p t - I n p u t O b j e c t $ t a s k v l a b a d - E r r o r A c t i o n S t o p | O u t - N u l l

Not sure what is going on, any thoughts ?

Thank You