The tool has just been deploited on Vietnamese wikipedia, and after I've turned the feature on on the beta feature preference, I tried replying to some comments. After clicking into the reply button, that button disappeared but the reply box was nowhere to be found, and also all the other reply button turned into gray. What's wrong? Please help me.
Edit 1: Okay, it seems that other users in my wiki can still use the feature... but after I changed the browser the problem is still there.
Edit 2: After further testing I realized that the problem only appears if I click the reply button of the lastest comment. It'll be fine if it's not the lastest comment. What's wrong though?