Is the inconsistency, which doesn't cause the classification error, a bug?

When using a pictures as input to the model before and after compiling by TVM, the prediction results are slightly inconsistent. However, it did not cause a classification error

np.testing.assert_allclose(frame_output, tvm_output, rtol=1e-3, atol=1e-3) is used as the criterion.

Can such inconsistencies indicate a bug from TVM?