told you, it works in mysteryous ways. they don't always tell you why things get shelved or delayed. it may be because of multiple reasons (scandals, censorship, arbitrary cheange of roules). then they release old dramas at once (like this summer)
the way of CEnt are mysteryous ahahah. the first photo here on mdl is from 2020. considering that it took more than 5 or 6 years to some dramas to see the light it isn't even that long. you need patience if you want to be a C Dramas fan
Were the drama's costumes the Song Dynasty? Of all the dramas with the similar women's hair/makeup, Min Mi's hair/makeup…
the costumes are definitely song dynasty inspired, whether the drama is set in the actual dynasty or a similar fantasy one is another pair of shoes (to avoid censorship in case they took liberties with history)