If you experience the "prop pitch bug" in the 109E4

[Insuber]

Originally Posted by Robo.

The problem is that when you spawn on a server (this happens online only), your prop pitch starts dropping down. (E-1, E-3, E-4) If you don't do anything, it will simply drop all the way down to 8:30. You just need to make sure the prop pitch is 12:00 in the take off run, which is part of the pre take off procedure btw.

All these 'problems' are being reported, in my opinion, just because pilot starts the engine and tries to take off on inapropriate propeller setting. The drop after spawn is weird, but it's pilot's responsibility to do all the checks. All you need to do is hit the Increase RPM knob and set it on 12:00. No problems whatsoever.

Nope. In auto, the E4 starts always at 12:00 pitch. T/O is OK. I confirm my description of the issue, prop pitch coarsens after T/O till 8:30/1500 rpm. It works again by doing the procedure described by the OP.