I ran into this same issue.
As of right now they have for some reason disabled the machine response in Luban…
You are going to need to use something like YAT, settings for the artisan(i think) are: COM port 3, 115200 BAUD Rate and in text settings EOL sequence set to LF
I just did my ESteps tonight and oh boy were they off from the factory, which may explain why my print quality has been so poor.