Hello @TheNyJan!
It is great to hear you exploring and trying to fix this lockscreen issue. Sadly, I have discovered another issue. Scenario: I am currently playing Dragon Age, which I have a profile for it "DAI" but even when I am playing the game, IdleKey will take affect and go to my idle profile "HeartBeat." Then I believe the program realizes the computer is not in idle model and will within 1-2 seconds switch back to my DAI profile without me doing or touching anything. Also, same thing happens if I am using my xbox controller to play Dragon age.
Oo Also your temp. fix for the lockscreen issue is really not going to work for most cases because I have my default "Heat Reactive Profile" and for my idleKey I use my "HeartBeat Profile" so I really can not have two of them on my onboard memeory ;(
Thank You in Advance