Google Home not able to play created playlist anymore

[Lodhiac]

Plan

Free/Premium

Country

 Aus

Device

Google Home Mini

Operating System

Andrioid

My Question or Issue

 I have created playlists which normally google home mini is able to play if I say "hey google play my <playlist name> playlist". This week, all of a sudden, my google home mini has stopped being able to recognize some of my created playlists. Some of my playlists will be recognized and will play on command, whilst some playlists the google home mini will recognize and say "Here's your spotify playlist called <>", but then go onto playing something completely different and completely unrelated to what I said. 

How can I fix this? I've writed un-linking my spotify account from the Google Homee Mini and tried resetting the google home mini but no luck.