Comment by Na-ri on Dear Benjamin - Chapter 0.2 : notice.2.

The illustrator before doing dear Benjamin did some doujinshis about kids (probably less than 15y) p*rn. And bcs of that, they are having problems with the situation, so they can't draw dear Benjamin while the whole thing is not totally resolved. This is what I did understand, but there can be something else I did forget.
P.s. sorry if there is something you can't understand. English is not my original language (ー_ー゛).

It's a bit more serious than what the last person said. The artist drew baby x adult po**, which obviously got them fired and the story was discontinued . The author has to find a new illustrator that matches the old ones style. That is very difficult considering their financial status (as they get very little money from official websites). There's a high chance that it will never happen and thus the story won't be continued. This is what I found out when the controversy rose, but that was many months ago so some of it may be false.