Delete entry from my watch history

I have an issue with ¡Que viva Mexico! (1932) [https://www.imdb.com/title/tt0022756], seems that it was flagged as "Watched" because it was in my Check-in list; and now I can't remove it because its status was modified to "Coming soon" and I don't have the option to put it as "Not watched" with the result of having the entry stucked in my watch history.