Over the weekend, I shot extensively at several events, and I noticed something. It seems that the shaking process at startup that is supposed to clear any dust is sometimes lasting longer, usually more pronounced (louder and you can feel the vibrations are stronger), sometimes also slightly delayed.

There seem to be no problems, and even after I did some cleaning once I got home, the varied performance on startup, compared to what has happened in the past, is continuing. Has anyone else experienced anything like this? Is this just a natural response to sensing what may still be some stray dust floating around, or an indicator that problems may be coming?