[Aileron Spike]

Pete, I only assigned all axes in FSUIPC to determine if P3D was somehow the cause, but rolled back all assignments to P3D after determining it did not matter if P3D OR FSUIPC had control over axes.

I was finally able to reproduce the spike with your suggestions. I edited the INI file to include your suggestions, then clicked on "Axis Controls," then "New Log."  I waited until the initial spike to start the logging, hoping the next one would happen quickly but it did not until later. I cannot upload one log file but two were created: fsuipc5.1.log and fsuipc5.log (attached). As soon as the ailerons went full left, I stopped the log. Please let me know if there is something else I should do. I copied the beginning 30 or so lines and then skipped to the bottom and copied the last 30 or so lines of fsuipc5.1.log:

Module base=7FF91A1B0000
Windows 10 Home 64 Bit reported as Build 15063, Release ID: 1703 (OS 10.0)
Prepar3D.exe version = 4.1.7.22841
Checking the Registrations now ...
User Name="Jonathan Vida"
User Addr="syndola@@hotmail.com"
FSUIPC5 Key is provided
WIDEFS7 not user registered, or expired
       47 System time = 09/01/2018 21:43:24
       47 FLT path = "C:\Users\syndola\Documents\Prepar3D v4 Files\"
       47 ------ Module Version Check ------
       47        acontain.dll: 4.1.7.22841
       47             api.dll: 4.1.7.22841
       47        controls.dll: 4.1.7.22841
       47      fs-traffic.dll: 4.1.7.22841
       63             G3D.dll: 4.1.7.22841
       63        language.dll: 4.1.7.22841
       63            sim1.dll: 4.1.7.22841
       63        visualfx.dll: 4.1.7.22841
       63         weather.dll: 4.1.7.22841
       63          window.dll: 4.1.7.22841
       63 ----------------------------------
      110 FS path = "D:\Prepar3D v4\"
      250 ---------------------- Joystick Device Scan -----------------------
      250 Product= Saitek Pro Flight Yoke
      250    Manufacturer= Saitek
      250    Vendor=06A3, Product=0BAC (Version 3.4)
      282    GUIDs returned for product: VID_06A3&PID_0BAC:
      282       GUID= {518DE8E0-3626-11E5-8005-444553540000}
      282       Details: Btns=23, POVs=(0, 0, 0, 0), Cal=x00000000, Max=R0,U255,V255,X1023,Y1023,Z255
      282 Product= CH PRO PEDALS USB 
      282    Manufacturer= CH PRODUCTS
      282    Vendor=068E, Product=00F2 (Version 0.0)
      282    GUIDs returned for product: VID_068E&PID_00F2:
      282       GUID= {518B77E0-3626-11E5-8004-444553540000}
      282       Details: Btns=0, POVs=(0, 0, 0, 0), Cal=x00000000, Max=R0,U0,V0,X255,Y255,Z255
      282 -------------------------------------------------------------------
      282 Device acquired for use:
      282    Joystick ID = 1 (Registry okay)
      282    1=Saitek Pro Flight Yoke
      282    1.GUID={518DE8E0-3626-11E5-8005-444553540000}
      282 Device acquired for use:
      282    Joystick ID = 0 (Registry okay)
      282    0=CH PRO PEDALS USB
      282    0.GUID={518B77E0-3626-11E5-8004-444553540000}
      282 -------------------------------------------------------------------
      329 LogOptions=00000000 00010091
      329 SimConnect_Open succeeded: waiting to check version okay
      329 Opened separate AI Traffic client okay

Note:......most of the items between these two lines are identical to the following lines...

   765719 ###JOY### Event seen, ID=66504 (0x000103C8), Joy=32, value=-519 
   765719 Axis calibration: Control=66504, Original=-519, Calibrated=-519
   765719 ###JOY### Event seen, ID=66503 (0x000103C7), Joy=33, value=5646 
   765719 Axis calibration: Control=66503, Original=5646, Calibrated=5646
   765766 ###JOY### Event seen, ID=66504 (0x000103C8), Joy=32, value=-521 
   765766 Axis calibration: Control=66504, Original=-521, Calibrated=-521
   765766 ###JOY### Event seen, ID=66503 (0x000103C7), Joy=33, value=5641 
   765766 Axis calibration: Control=66503, Original=5641, Calibrated=5641
   765813 ###JOY### Event seen, ID=66504 (0x000103C8), Joy=32, value=-523 
   765813 Axis calibration: Control=66504, Original=-523, Calibrated=-523
   765813 ###JOY### Event seen, ID=66503 (0x000103C7), Joy=33, value=5637 
   765813 Axis calibration: Control=66503, Original=5637, Calibrated=5637
   765860 ###JOY### Event seen, ID=66504 (0x000103C8), Joy=32, value=-524 
   765860 Axis calibration: Control=66504, Original=-524, Calibrated=-524
   765860 ###JOY### Event seen, ID=66503 (0x000103C7), Joy=33, value=5634 
   765860 Axis calibration: Control=66503, Original=5634, Calibrated=5634
   765907 ###JOY### Event seen, ID=66504 (0x000103C8), Joy=32, value=-525 
   765907 Axis calibration: Control=66504, Original=-525, Calibrated=-525
   765907 ###JOY### Event seen, ID=66503 (0x000103C7), Joy=33, value=5632 
   765907 Axis calibration: Control=66503, Original=5632, Calibrated=5632
   768000 Ready Flags: Ready-To-Fly=Y, In Menu=Y, In Dlg=Y
   768000 Sim stopped: average frame rate for last 375 secs = 22.4 fps
   768000    Max AI traffic was 184 aircraft (Deleted 0)
[Log closed by user request, and continued in new file]
   772985 System time = 09/01/2018 21:56:17, Simulator time = 14:06:13 (18:06Z)
   772985 *** FSUIPC log file being closed
Minimum frame rate was 8.3 fps, Maximum was 29.5 fps
Average frame rate for running time of 375 secs = 22.4 fps
Maximum AI traffic for session was 184 aircraft
Memory managed: 151 Allocs, 149 Freed

Thank you again!

fsuipc5.log

[Aileron Spike]

Thank you both. I am in the process of trying to reproduce the spiking with Pete's INI suggestion.

[Aileron Spike]

Thank you Thomas. I have turned off power saving for USB and will attempt to recreate the issue this evening with a new log file.

Edit: Unfortunately, that didn't work. I have created this log of about 10 minutes of my flight tonight, recording the axes (attached). This even happens when I disconnect all USBs from my computer. 

fsuipc5.log

[Aileron Spike]

Pete, I would like to say 'thank you' for developing FSUIPC. I know you've worked hard on it and have used it since your first release. I was hesitant submitting to this forum, but I am now at a loss.

About 3 weeks ago in P3D v4, I noticed randomly, sometimes continuously for short spurts, my ailerons were spiking to the left. It did not matter the aircraft type nor condition. I turned on FSUIPC (version 5.122) logging and found this:

1488735 *** AXIS: Cntrl= 65695 (0x0001009f), Param= 16383 (0x00003fff) AILERON_SET

A normal aileron axis movement with my Saitek Pro Yoke shows this:
1487907 *** AXIS: Cntrl= 65765 (0x000100e5), Param= 16383 (0xffffce91) AXIS_THROTTLE_SET

I ran many tests and cannot figure out what is sending this to the sim:
Disconnected ALL USB ports, including mouse/keyboard.
Deleted the FSUIPC INI file AND the P3D CFG file. 
Selected 'aileron' in 'Control Spike Elimination' in FSUIPC but spikes still occur.
Allowed FSUIPC to handle all axes (reverted back since this did nothing)
Checked all axes for assignments other than joystick

It happens at random times, without even touching the computer and will sometimes happen back to back (see log file attached). When at cruise it still happens but luckily the autopilot does not disconnect, though the aircraft almost rolls over. I cannot hand fly anymore worried about this spike. 

Anyone have any ideas where I can find the culprit? It seems like the 0x0001009f from the FSUIPC log file is the identifier, but I cannot figure out what that is. Or, perhaps there is a way to edit the FSUIPC file to ignore that axis?

Thanks in advance for your assistance.

fsuipc5.log