Prepar3d is resetting my control layout on loading

I'm having an issue where my control layout is reverting to some default layout every time I start the sim, or load a new plane. 

I've tried everything I can find to solve this issue, as far as I can tell it's not a permissions issue, it's not a corrupted controls xml issue, I have no idea. 

I've tried changing control_layout=standard in the P3D config to =null, I've tried changing the standard.xmlx to the control layout I want, none of this has worked. P3D will rewrite the config back to =standard and standard.xmlx will get rewritted back to this default layout.

I cannot fathom where this control layout is coming from, I've tried looking for any standard layout file to no avail. It will rewrite the controls anytime I load a new scenario.

I'm running P3D 4.3 as an administrator, one of my first troubleshooting ideas was to reinstall the client so I should be running whatever the newest version is.

I've tried the normal troubleshooting stuff; deleting the controls folder, deleting the P3D.cfg, and deleting the two generated files in Appdata:Local:LM:P3D and it seems none have had an effect. 

I did notice that when reloading my old control config it is not writing a new "standard.xml" file into the Controls folder, the only thing in the newly generated folder is "standard.xmlx". However, it seems to have no trouble writing a new p3D.cfg and the permissions on the controls folder aren't different from any others.

Also, pressing "reset defaults" in the control options window resets the controls to a different layout than it does when loading a new plane or loading the sim.

Not sure if those 2 things are helpful in diagnosing the problem but I have no idea what else would be helpful.

Has anyone else had this issue? I've searched around and found a few topics of people having similar issues, but none of their solutions seem to have solved the problem.