Reference to non-existent field 'originalNet' when run network with showWindow = false

I want to disable window when training the network. When i set net.trainParam.showWindow = false i get error * Reference to non-existent field 'originalNet'*. That happens with training algorithm "trainbfg". With "trainlm" works fine.

I have tried to set net.trainParam.showCommandLine = true and net.trainParam.show = NaN with no effect. What cause this error ?

[KAE]

Please provide your code, since the following works fine for me. Maybe there is info here that will help, such as the Matlab version that the command works for.

hiddenLayerSize = 5;
net = fitnet(hiddenLayerSize);

% Add some example net parameters before training the net
net.divideParam.trainRatio = 80/100;
net.divideParam.valRatio = 10/100;
net.divideParam.testRatio = 10/100;

% Add this as another net parameter
net.trainParam.showWindow = 0; % Don't show the popup window

% Now train the net
[net,tr] = train(net,inputs,targets);