Yes, how can I send it to you? ( I have a local notebook not a colab)
In the dummy notebook are two sets of data and the problem is as follows: starting from scratch, with a first set of data, everything is OK (results for build model + train are the same as the ones for load model + train). The problem appears when I continue with a subsequent set of data: the results for build model + train are different than the ones for load model + train.