If I try to rename Timestamp header in LoggingProvider writing JSON files, then datetime values is written odly

[tejl]

This configuration works and time values are written as e.g. "Timestamp":"2025-04-29 12:30:32"

$jsonLoggingProvider = @{
	Name         = 'logfile'
	InstanceName = 'JsonProvider'
	FilePath     = 'D:\logs\json\joblog-%Date%.json'
	FileType	 = 'json'
	Enabled      = $true
	Wait         = $true
	JsonString   = $true
	Encoding     = 'UTF8'
	MutexName    = 'jsonProvider'
	TimeFormat   = 'yyyy-MM-dd HH:mm:ss'
	Headers		 = 'Timestamp', 'File as ScriptFile', 'Level', 'Line', 'Message', 'FunctionName', 'ModuleName', 'ComputerName', 'Runspace', 'Tags', 'TargetObject', 'Type', 'Username'
	LogRotatePath = 'D:\Logs\json\joblog-*.json'
}

If I try this configuration (see changes in Headers)

$jsonLoggingProvider = @{
	Name         = 'logfile'
	InstanceName = 'JsonProvider'
	FilePath     = 'D:\logs\json\joblog-%Date%.json'
	FileType	 = 'json'
	Enabled      = $true
	Wait         = $true
	JsonString   = $true
	Encoding     = 'UTF8'
	MutexName    = 'jsonProvider'
	TimeFormat   = 'yyyy-MM-dd HH:mm:ss'
	Headers		 = 'Timestamp as _timestamp', 'File as ScriptFile', 'Level', 'Line', 'Message', 'FunctionName', 'ModuleName', 'ComputerName', 'Runspace', 'Tags', 'TargetObject', 'Type', 'Username'
	LogRotatePath = 'D:\Logs\json\joblog-*.json'
}

then values are written as: "_timestamp":{"value":"/Date(1745922216099)/"

[FriedrichWeinmann]

Thanks for spotting and reporting this.
Will look to fix that in the next release