03_05_vae_faces_train.ipynb: unable to save model with {loss:.2f}

[arisliang]

OSError: Unable to create file (unable to open file: name = 'run/vae/0001_faces\weights\weights-001-[1268.2771 533.9863 517.3795 998.59143 648.56256 729.18225
655.6426 383.01758 483.9422 1255.6431 1351.9233 881.78906
1008.7115 1596.2979 522.4963 1055.336 ].h5', errno = 2, error message = 'No such file or directory', flags = 13, o_flags = 302)

The loss returns BATCH_SIZE number of values, instead of one value. Should't the loss be one value only per batch?

tensorflow 2.0 branch