Was on a playlist but got removed.

Hi, I’m fairly new to all of this…

I started to release my tracks onto all platforms and this site has been great.

Whilst I’ve had a few acceptances onto playlists, I was on one that was giving me decent exposure, but have noticed that the track was removed from the playlist.

I did submit the same track to another playlist, from the same curator, and the song has went onto this (a few days ago).

Is it normal practice for a curator to decide randomly that a track doesn’t fit the playlist and then remove it?