You changed the status to Rumored, they may not allow just rumored content. It seems the bot ignores rumored movies too?

To solve that you can set it back to released(since there's yesterday as release date added) and see if its on LB again within 30 hrs. If not, write them an e-mail.

@charlottekennett said:
Film Not On Letterbox'd?
Hi, I noticed "Psycho Baby" was up on Letterbox'd one day (I left a review) and then the next day it was gone?
Psycho Baby is still up here on TMDB but nowhere to be found on Letterbox'd. I'm confused and would love to know why.
Can you help me get this film back on Letterbox'd?
Best,
Charlotte

No, we can't help.
For a very simple reason.
TMDB and Letterboxd are completely independent.
They are two distinct companies.
Only Letterboxd uses TMDB data as well as other various websites and apps.
But the administrations are distinct.
I suggest checking for any Letterboxd FAQ or Forum or contact LetterBoxd administrators.

It's now on Letterboxd, so I close this.