Opening files from mapped drives fails when launching Notepad++ in Administrator mode.

Description of the Issue

Notepad++ is unable to open files from mapped drives when it has been launched in Administrator mode.

Steps to Reproduce the Issue

1. Map a network drive to a network share; i.e. J:\ to \server\share
2. Open Notepad++
3. Open a file such as C:\Windows\System32\drivers\etc\hosts
4. Make a change to the hosts file. Notepad++ will ask if you want to "launch Notepad++ in Administrator mode?"
5. Click Yes.
6. Open File Explorer and try to open any file in your network drive; i.e. J:\readme.txt

Expected Behavior

I expected Notepad++ to be able to open the file.

Actual Behavior

Notepad++ gives the error: "J:\files\readme.txt" cannot be opened: Folder "J:\files" doesn't exist.

Debug Information

Notepad++ v7.9 (64-bit)
Build time : Sep 22 2020 - 03:19:04
Path : C:\Program Files\Notepad++\notepad++.exe
Admin mode : ON
Local Conf mode : OFF
OS Name : Windows 10 Pro (64-bit)
OS Version : 1909
OS Build : 18363.1198
Current ANSI codepage : 1252
Plugins : mimeTools.dll NppConverter.dll NppExport.dll

Screenshots

Start by reproducing the mapped-drive failure using the listed Windows 10 steps, including relaunching Notepad++ in Administrator mode. Verify that a file on the mapped drive opens normally before elevation and fails afterward; done means the same file opens successfully in Administrator mode.