It's because the author is on a long hiatus. This hiatus is always random and he only comes back to post one chapter whenever privilege chapters are about to run out on webnovel.
His power works by replicating stuff but his ability isn't tangible meaning it can't interact with anyone except for a short moment before it goes away. later on, this power improves through items and a quest-like system but I would give this a read when you have the time. Though it isn't the best and I would say some characters feel a bit two-dimensional sometimes the story works and some excellent hooks and the constant threats make is very enjoyable.
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After 200 chapters I will write another comment.