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A quick fix to the tb TypeError issue seen here. It seems like the
if not np.isnan(metric_value)
call in this line is trying to convert some of the tensor values in metric_value (e.g. the train_loss) to numpy values. From what I can tell some of the values in metrics are floats and some are tensors so I added a short check to see if there are any tensors and if so make a copy of the variable, send to cpu, send to numpy (the last part might be wholly unnecessary).