Broadcast of Vincenzo Episodes 17 and 18 Delayed One Week. Vincenzo’s 17th and 18th episodes are delayed one week for production reasons per this Soompi article.
On April 7, the drama’s producers officially announced, “After the airing of Episode 16, [‘Vincenzo’] will be going on a one-week hiatus in order to improve the quality of the drama. On April 17, we will be airing a special episode [instead of Episode 17].”
It is not clear what “improve the quality” means. I’ve seen speculation it means re-recording certain scenes, adjusting the script due to positive fan feedback on a potential romance, etc.