I can see the title but not any posts.

What I would suggest (for any long content you create) is to do this in Word or Notepad or Notepad ++ first and save regularly. That way if the online service rejects it or you get a network fault you have not lost your local content. It may seem like an old fashioned thing to do (admittedly I come from the times when computers rarely could be trusted not to crash at least once whilst working on a long project).

Also be aware that a “long read article” in the Grauniad is approx 5000 worlds and often they have to say its a long article or folk complain its too long to read (and that is for a paper supposedly aimed at intelligent readers. :crazy: )