Using PS 7.1.5

PS>$data = 'hi'
PS>$script = [scriptblock]::Create('Write-Host $using:data')
PS>1..2 | ForEach-Object -Parallel $script
hi
hi

Using PS 7.2.0

PS>$data = 'hi'
PS>$script = [scriptblock]::Create('Write-Host $using:data')
PS>1..2 | ForEach-Object -Parallel $script
InvalidOperation: A Using variable cannot be retrieved. A Using variable can be used only with Invoke-Command, Start-Job, or InlineScript in the script workflow. When it is used with Invoke-Command, the Using variable is valid only if the script block is invoked on a remote computer.
InvalidOperation: A Using variable cannot be retrieved. A Using variable can be used only with Invoke-Command, Start-Job, or InlineScript in the script workflow. When it is used with Invoke-Command, the Using variable is valid only if the script block is invoked on a remote computer.

Exception             :
    Type        : System.Management.Automation.RuntimeException
    ErrorRecord :
        Exception             :
            Type    : System.Management.Automation.ParentContainsErrorRecordException
            Message : A Using variable cannot be retrieved. A Using variable can be used only with Invoke-Command,
Start-Job, or InlineScript in the script workflow. When it is used with Invoke-Command, the Using variable is valid
only if the script block is invoked on a remote computer.
            HResult : -2146233087
        CategoryInfo          : InvalidOperation: (:) [], ParentContainsErrorRecordException
        FullyQualifiedErrorId : UsingWithoutInvokeCommand
        InvocationInfo        :
            ScriptLineNumber : 1
            OffsetInLine     : 1
            HistoryId        : -1
            Line             : Write-Host $using:data
            PositionMessage  : At line:1 char:1
                               + Write-Host $using:data
                               + ~~~~~~~~~~~~~~~~~~~~~~
            CommandOrigin    : Internal
        ScriptStackTrace      : at <ScriptBlock>, <No file>: line 1
    TargetSite  :
        Name          : GetUsingValue
        DeclaringType : System.Management.Automation.VariableOps, System.Management.Automation, Version=7.2.0.500,
Culture=neutral, PublicKeyToken=31bf3856ad364e35
        MemberType    : Method
        Module        : System.Management.Automation.dll
    Message     : A Using variable cannot be retrieved. A Using variable can be used only with Invoke-Command,
Start-Job, or InlineScript in the script workflow. When it is used with Invoke-Command, the Using variable is valid
only if the script block is invoked on a remote computer.
    Data        : System.Collections.ListDictionaryInternal
    Source      : System.Management.Automation
    HResult     : -2146233087
    StackTrace  :
   at System.Management.Automation.VariableOps.GetUsingValue(MutableTuple tuple, String usingExpressionKey, Int32
index, ExecutionContext context)
   at System.Management.Automation.Interpreter.FuncCallInstruction`5.Run(InterpretedFrame frame)
   at System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(InterpretedFrame frame)
CategoryInfo          : InvalidOperation: (:) [], RuntimeException
FullyQualifiedErrorId : UsingWithoutInvokeCommand
InvocationInfo        :
    ScriptLineNumber : 1
    OffsetInLine     : 1
    HistoryId        : -1
    Line             : Write-Host $using:data
    PositionMessage  : At line:1 char:1
                       + Write-Host $using:data
                       + ~~~~~~~~~~~~~~~~~~~~~~
    CommandOrigin    : Internal
ScriptStackTrace      : at <ScriptBlock>, <No file>: line 1