Standby altimeter and ASI issues

In the issues thread I saw someone mention the fact that the MB setting of the standby altimeter doesn't change, only the HG setting. I just noticed something that's probably connected to this same thing: after changing the baro setting, there are two altitude pointers in the standby altimeter. One is stationary and one moves.Further, while in the cruise and fiddling with the baro setting the standby ASI dropped to zero, then got back to the original air speed. When I turned the barometric selector again, the ASI dropped again.Leo Bakker