Can't input fuel load using Fuel & Payload editor

[Chuck Dreier 75]

I can't change the fuel load using the Fuel and Payload editor.  If I input the fuel weight the numbers don't "stick" and they even change at entry.  The same when trying to input as a percentage.  This happens with default aircraft as well as add-ons such as the QW757 where direct input is required to set the fuel load.    I've looked for a solution on the forum but haven't found one.  Help is needed please.  P3D v3.4.18.19475.

[downscc 1,327]

Verify you are running P3D with admin rights.

[Chuck Dreier 75]

Yes, I am running this as an Administrator, in fact, for all users.  I'm baffled.

[Poppet 710]

Hello Chuck,

Have you tried adjusting the % or Pounds and then left clicking the entry below to see if it sticks ? 

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Try these steps,  This will not effect any of your Add On's.  These are Generated files,  They will generate again when you launch Prepar3D  (Maybe there corrupt)  

1) Locate and Delete your UISettings.xml file at the location below 

Local Disk (C:) ► Users ► You ► AppData ► Roaming ► Lockheed Martin ► Prepar3D v3 - UISettings.xml 

Launch Prepar3D and test 

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Try this next

2) Locate and Delete the 2 files in blue below 

Local Disk (C:) ► Users ► you ► AppData ► Local ► Lockheed Martin ► Prepar3D v3 -  Prepar3D_Default.fxml \ Prepar3D_Default.wx

Launch Prepar3D and test 

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Note: To find these files,  Insure the box is Ticked for  Show hidden files, folders and drives in File Explorer Options