What is the bug ?
When recording a lot of tracks via the program, it sometimes breaks recording. This can be noticed because the timer within the app doesn't move anymore but Spotify itself just continues playing. It seems that even if this problem happens, the playback data is still recorded but trying to stop Spytify results in force stopping it (clicking Stop again) as it waits for the track to be finished but that never happens.
Afterwards, I often have to delete the resulting file and start over with where I lost connection to record. Also, I then need to create a complete new Spotify App to access API again, otherwise the program will ask for access but doesn't detect anything.

Track used
Happens with any track that it currently playing after a longer recording session. The disconnects happen at any time, so I can't give any good time window of how much to record before it starts breaking.

Screenshots
Will attach a screenshot if helpful and it happens again.