when changing CHA_Fan1 speed, cpu fan speed changes instead!

[MeGuMeX]

Here is my spec:
Motherboard asus prime b450-plus
CPU AMD Ryzen 5 5500GT with AMD stock Cooler
GPU Zotac Nvidia GTX 1080 Ti AMP EXTREME
Ram 16GB 3200

so here is the problem, my exhaust fan which is called CHA_FAN1 by motherboard port is a PWM type. and in the app I have these Fan controls which you can see down here:

Fan1 = CPU fan
Fan2 = Exhaust
Fan3 = DC fans of Thermaltake which is my front-intake fans

it doesnt matter which fan (1 or 2) I increase the speed for, because all of a sudden my cpu fan ramps up instead.
here is how it looks like when I increase for Fan 1 and 2.
Fan 1(CPU) selected:

Fan 2(Exhaust) selected:

please help me with this issue I would be much appreciated <3 thanks in advance

[Rem0o]

Why in both your screenshots, the control is called "CPU" ? Looks to be the same selected. If you got 2 controls with the same name, that's an issue. You are not supposed to be able to have 2 controls with the same name.