I experienced the same thing yesterday.
I think if you remove the AccountId field from the model where it is not updating, you’ll be in good shape (as long as you don’t need it for anything else). Seems like some kind of regression. Skuid will automatically update it, as long as the field isn’t on the model.
ERG!!! It was something completely unrelated. The error originates on the step1 of the wizard where their is an email address that caused a validation error of sorts without displaying anywhere for me to see. I even placed a placeholder component for the related model onto step2 to see any errors. This is the error I reported on but it really was the fact that the email field caused an exception.
So, in the end, I think it’s a bug in skuid as the AccountId in the data row is updated but not the one in changes.