combiner "mix in" behaves unpredictable

[loehden]

The combiner "mix in" behaves totally unpredictable to me on the server http://smarterplaylists.playlistmachinery.com.

For example when I try to mix the two Spotify playlists

• Top 50 Global (green)
• Top 50 Germany (red)

with options

• initial number of green tracks: 3
• number of green tracks in a row: 3
• number of red tracks in a row: 1

I get a playlist with

• 1 green
• 1 red
• 3 green
• 1 red
• 2 green
• 3 red
• 1 green
• 3 red
• 2 green
• 1 red
• etc.

I had a look in the code but but could not find an error in the MixIn class in plugs.py myself.