I cannot play my own playlist from Apple Music on Alexa

I have been a user of Apple Music for years, with a paid subscription. Recently I got an Alexa echo device and wanted to explore its options regarding music. I connected my Apple account to Alexa and set Apple Music as default app for music. Even though I have been able to play songs from Apple Music through Alexa, I have not been able to play my own playlist, although everything was tried (according to previous discussions, I already emphasised on using the word MY before the name of the playlist, making sure the Sync Library is on and etc.). Has someone stumbled upon the same problem and could give advice?