Interesting. Does this mean the client is actively sending coins through the mixer whilst your computer is on? Like automatically?
Passive mixing so coins are joined and mixed through Master Nodes and they are ready to be used anonymously. You don't spend and wait for others to mix with. You just tell the wallet to do the mixing while you're asleep.
The OP has the diagram and technical explanation.
You stated there was a problem before you understand the new approach being used.