neural network parallel error

Hi all,

I'm trying to use the parallel neural network training method. However, I got such error:

Starting matlabpool using the 'local' profile ... connected to 4 labs.
Error using trainbr (line 106)
Error weights EW is not a matrix or cell array.

Error in network/train (line 106)
[net,tr] = feval(net.trainFcn,net,X,T,Xi,Ai,EW,net.trainParam);

Error in do_ts_prediction_sep (line 141)
   [net,tr] = train(net,inputs,targets,inputStates,layerStates,'useParallel','yes');

The code runs with no error when not using parallel method.

Any ideas?

Thank you so much.

Best,

Xiangming