Some songs don't get registered as having been played

[Wurmmann]

Plan

Premium

Country

Germany

Device

Samsung Galaxy 10

Operating System

(iOS 10, Android Oreo, Windows 10,etc.)

My Question or Issue

I use stats sites for Spotify and they all track songs the same. But sometimes a song that I play in its entirety does not get added to recently played. The song I play after that does got added however. So it is not an issue with update delay. And it definitely is an issue on Spotify's side, because all the stats site show my recently played songs the same.