Nothing to do with Kodi.
Please explain what you are doing (from what device are you streaming? Are you streaming a playlist? Do you experience this with a single track? What track? etc)
I am simply streaming to kodi from my macbook running spotify and using spotify connect for it. I am mostly using playlists. There is no single track or anything that reproduces this.
This issue occurs seamingly randomly, sometimes after 1-2 tracks, sometimes after a whole day of playing.