CH Yoke users. See this post if you have problems with NAV and HDG not holding. this thread has the file to edit to change the sensitivity settings. I used -50 for sensitivity and 3 for deadzone. Change the X-axis value for ailerons.
https://forums.flightsimulator.com/t/patch-2-controls-sensitivity-settings-not-showing/273486/29
The file location for Steam users is further down the thread. (\Steam\steamapps\common\MicrosoftFlightSimulator\Input)
Based on a short period of testing, it seems to be working.
EDIT: 
that lasted one flight. Had a one-plus hour flight this morning with no problems. now, after work, same old issue is back. argghh!