I am now encountering the same problem but randomly… if I save the yml it fails step 3, even if I rerun, then I save the same yml again (not even actually edit it - just open for edit and save) and it fails step 4 instead, no outputs, no information, no nothing useful at all just doesnt work (it did 4 weeks ago last time I was making any changes and nothing but nothing is supposed to be different from my side) and again rerun is ok.
Frankly doing brain surgery with plasticine spoons is not good