Random Tracks Added to Tidal Playlists

I’ve noticed that Tidal adds random tracks to the end of my playlists at the rate of one or two tracks per week - since these cannot be deleted from the Naim iOS App, I’m obliged to login to the Tidal App to get rid of them.

Has anybody else seen the same behavior? Together with the fact that, since the last firmware update, my ND5 XS and MuSo will only play one track at a time, I’m about ready to ditch Tidal.