Hi ,
thanks for taking the time.
There are no additional conditionals in any way, i already reduced the PlayerTick to what i wrote one post earlier. Of course i already tried logging Debug - Messages, with the same result.
When i got some time again i will try creating a new empty project which just has the logging of the mouse-accel implemented, just to know if its some setting i did (Though i already checked everything, but you can never be really sure 
).
Since it should work for other devs (or otherwise we would have more threads with this topic here), it must be some setting or override anywhere.
Cheers,