Excel vba: Property let procedure not defined and property get procedure did not return an object

I have a Client class. Inside that class there is an array losses. First I create and populate with clients a clientsColl array. Then for each client in that array I populate its losses array.

Then I try to print into debug a first element of losses for each client. However, it doesnt work and Property let procedure not defined and property get procedure did not return an object error appears.

And the same time if I just try to display a first element of losses for the first client, without any cycle, it works fine:

Dim clientsColl() As Client
clientsColl = getClients(dataWorkbook)

Dim clientCopy As Variant    

Debug.Print "first: " & clientsColl(1).getLosses(1) 'works fine
For Each clientCopy In clientsColl
    Debug.Print "in for each: " & clientCopy.getLosses(1) 'error here
Next

In Client class:

Public Property Get getLosses()
    getLosses = losses
End Property

Private losses() As Double

How the losses array is populated:

Public Sub calculateFinancialResult()
    ReDim losses(1 To simulationCount)
    ReDim profits(1 To simulationCount)

    Dim i As Long
    For i = 1 To simulationCount
        If outcomes(i) = 1 Then
            losses(i) = totalLoss
            ...
        Else
            ...
        End If
    Next
 End Sub

Why does this happen and how to fix it?

EDIT: more of the main sub:

For Each clientCopy In clientsColl
        clientCopy.setSimulationCount = globals("SIMULATION_COUNT")
        ...
        clientCopy.calculateFinancialResult
        ...
Next

EDIT:

At the same time a simple for cycle works fine:

Debug.Print "first: " & clientsColl(1).getLosses(1)
For tempCount = LBound(clientsColl) To UBound(clientsColl)
    Debug.Print "in for each: " & _
                clientsColl(tempCount).getLosses(1)
Next