hello!
My setup have two identical BU0836A cards to control yoke and rudder pedals. When I specify under set PTT particular one (when there is reaction to button pushed) and save. Wrong (first on the list) interface card is used and Pilot2ATC reads switch status from wrong device. When I open config again wrong BU0836A is set after window opens.
This was confirmed by pluging off second (first on the list) one. And with just one it works perfectly.
version: 2.5.0.5_r3
best regards!
pawel