Error: Failed to convert a NumPy array to a Tensor (Unsupported object type numpy.ndarray)

Question

I have a bunch of matrices, each one an array of nested arrays, for example:

array([[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
        1,