Episode 1x10 of the Black Monday is titled "0" (zero) https://www.sho.com/black-monday/season/1/episode/10/0
However, for some reason the system decided that the title "Episode #1611356" is more appropriate http://www.tvmaze.com/episodes/1611356/black-monday-1x10-episode-1611356
On the other hand it doesn't have problem with the episode 1x09, which is titled "2" http://www.tvmaze.com/episodes/1610246/black-monday-1x09-2
In the editing mode it still showing the correct title http://www.tvmaze.com/episode/update?id=1611356