Altimeter does not work correctly

Pressing “B” does not set the altimeter to current QNH like in other addons.

Also setting the Kohlsman setting manually gives a wrong altitude readout.

I was sitting at EKSB (Sonderborg, Denmark) with the METAR reporting 29.50InHg.
Manually setting 29.50 InHg in the Kohlsman window made my altimeter read negative altitude whereas the altitude at EKSB is +24 ft.

Setting the Kohlsman window to read 29.92 InHg (Standard pressure) made the altimeter read 0 feet.

Maybe the wrong Simvar is used for the altimeter.