When listening to music with Spotify at home I frequently change the output device: I might start listening to on my laptop or my mobile, switch the Spotify output over to my Chromecast in the living room or to my Bluetooth speaker in the kitchen and back again. Every time such a switch happens the listen is recorded additionally.

So I frequently end up with two or even more listens in LB for the same song I only listened to once, but switched devices. If I notice this I delete the extra listens.

I have not yet inspected the Spotify API output under those circumstances in detail. But probably there should be some safe guarding on the import. E.g. do not import a listen if it is the same song in a row and the time distance between both is less than the duration of the song.