IOS Hondata app not properly showing G Force

[YvesRSX]

Hello,
I have on my iPhone 13 Pro Max (with latest IOS) your Hondata Complete app (V 1.3.3). It can read no problem my RSX K-Pro info when driving but the G Force info is not reading actual G force (acceleration / braking / left / right) but record all the bump I run into on the road (up and down). My iPhone is mounted on a support (pinned to the dash, so, absolutely no movement delta between my iPhone and the car while driving). I can floor the gaz or brake and no variation in G force, same thing on high speed curve, left or right. I know for a fact that my iPhone can record correctly the G force as I run "Track Addict Pro" on it and I get full G force reading (acceleration, braking, left, right) on the same car and mount. The G force reading with Track Addict Pro gets it from the iPhone as no ODB device are connected during my test).
Thanks in advance.