Hello @niklastast ,

I'm not often here this days due to the high load, so thanks for your patience.

First of all do you have available Journal (journal input) field available for the user to leave a comment (by default it's there, but sometimes people switch to HTML or other customizations). Next thing is to check ACLs, if user can actually comment, by default I think normal users are not allowed to comment changes.

Regards, Ivan