Strange view issue - curious on thoughts

[Spikes]

Not sure if anyone's run into this before but it has me stumped. I don't know if there's any correlation but it's the only thing that's changed on my end and somehow this broke AH3 views.

I recently installed Opentrack to use in IL2 with a webcam as head tracking software as I'm just not competitive with my Quest 2 in there. Can't ID anything unless it's shooting at me, then I know it's an enemy.

Anyway, went to play FSO last night and I have a view issue where the game only uses instant snap views (F9) instead of normal snap (F7). I can't pan view (F8) either. I also can't arrow key around the tower (up, down, forward, back, left, right).

Things I've tried:
Uninstalled Opentrack, unplugged webcam, unplugged throttle/stick, deleted settings folder, uninstalled/reinstalled game, checked for 'stuck' keys on key tester, checked joy.cpl for stuck anything, tried both DX9 and DX11. I'm at a loss. The game also recognizes that it IS changing modes (looking at Ctrl I I can see it say DM Snap, DM Instant Snap, DM Pan) but everything is just stuck looking forward. Both internal and external behave the same. Checked the various settings within the game to make sure nothing is awry. I can provide video if needed as admittedly it's a bit difficult to explain.

Anyone experience this before?

[Animl-AW]

When OpenTrack continues to control your PC or interfere with game camera controls (like mouse-look) after uninstallation, it is usually because the uninstaller failed to remove a specific, persistent DLL file that tricks games into thinking a tracker is still active.

Here are the steps to fix this, based on user experiences with games like DCS World, Euro Truck Simulator 2, and Train Simulator.

Immediate Fix: Remove the Residual DLL Files
The main reason for this issue is that OpenTrack leaves behind NPClient.dll and NPClient64.dll. Games look for these files to detect TrackIR.
Search your computer for NPClient.dll and NPClient64.dll.
Delete or Rename these files (e.g., to NPClient.dll.old).
These are often located in C:\Windows\SysWOW64 or in the installation folders of the games themselves.

Additional Cleanup Steps
Reinstall and Uninstall with Cleaner: Install the newest version of OpenTrack, then uninstall it using a third-party uninstaller like Revo Uninstaller or CCleaner to ensure all registry keys and files are removed.

Check Game Settings: Within your simulation game, check the controller settings. Look for "TrackIR" or "Head Tracking" and ensure it is disabled.
Reboot: Ensure you restart your computer to clear any lingering processes.

Alternative: The "Soft" Uninstall
If you want to keep OpenTrack installed but want to stop it from taking over:
Open OpenTrack.
Click the Options (hammer icon).
Go to the Protocol tab.
Check the box for "Disable on program exit".
If the Problem Persists

If the issue is in a flight/driving sim, it may not be the software itself but rather that the game has mapped your mouse/joystick inputs to the "head tracking" function. Deleting the OpenTrack configuration files (usually in %APPDATA%\opentrack) or resetting your game's controller profiles to default can also resolve this.

[Animl-AW]

Ccleaner can clean the registry for files that don’t exist, yet still have registry entries

[Spikes]

Well I'll be damned, it was that residual NPClient.dll. I delete it, all is well. I'll have to do some more testing, but it seems AH was still pulling that despite the program not even being installed. I guess it makes sense since I want to use it in one game but not another, it just doesn't know that.

For future reference if anyone has this issue, that checkbox doesn't exist exist in Options but there is an option in Output (hammer icon) that says "Clear location when tracking is stopped" that seems to accomplish the same thing.

I was about to wipe and re-install Windows. 

Cheers Animl! 

[Animl-AW]

Well I'll be damned, it was that residual NPClient.dll. I delete it, all is well. I'll have to do some more testing, but it seems AH was still pulling that despite the program not even being installed. I guess it makes sense since I want to use it in one game but not another, it just doesn't know that.

For future reference if anyone has this issue, that checkbox doesn't exist exist in Options but there is an option in Output (hammer icon) that says "Clear location when tracking is stopped" that seems to accomplish the same thing.

I was about to wipe and re-install Windows. 

Cheers Animl! 

Cool
I would still go to mentioned appdata location and make sure that is gone and any “program files“ install folders. Empty Recycle bin, reboot,  Then, if you use it? Run Ccleaner registry cleaner.

EDIT: If you can find any older version of Ccleaner it will work and do that on free version. Version 7 blows.

[JimmyD3]

Glad you got it fixed Spikes!!

Animl, kudu's to you sir for a quick response with very concise successful information.

[Animl-AW]

Glad you got it fixed Spikes!!

Animl, kudu's to you sir for a quick response with very concise successful information.

Old hat for me. I love this stuff as much as playing. Can’t afford a single player. Only part of bbs I like.

 

[LCADolby]

Nice job Animl