JR, On the error you are seeing I need to be super clear what you are doing, my guess is you didn't save the results after training, but could be wrong, good test for using dnSpy maybe.
I have created a simplifed case, set train="True" to train, or train = "" to use the previously trained data, FTWL857.000.
I have created a simplifed case, set train="True" to train, or train = "" to use the previously trained data, FTWL857.000.