I'm confused about episode 19

Back when the video for episode 18 was just there to let us know when the episode would premiere, the video title said episode 18 and 19, but now the title only says episode 18 and being 20 minutes long I don't think it's the 2 episodes put together as one.

I remember them talking about whether they should release this as 1 or 2 episodes. I haven't watched episode 18 yet, I'm waiting for a time when I know I can sit back and enjoy it and know I wont get interrupted.

Anyway, I'm just wondering what happened to 19. I checked the community posts on Youtube and 12 days ago they said the editing for episode 19 was 10% done. Is that even enough time to get it done? I feel like it isn't but I also don't really know. I don't care how long I have to wait, it'll be worth it, it's just that this is weird and I can't find an answer anywhere.

Thanks :)