Unable to open settings (profiles.json): ShellExecute in LaunchSettings returns ERROR_ACCESS_DENIED

[brettfo]

Environment

Windows build number: 10.0.18362.175 (1903)
Windows Terminal version (if applicable): 0.2.1715.0

Any other software? No

Steps to reproduce

Open the settings file, either through the UI or via Ctrl+,

Expected behavior

The settings file to open.

Actual behavior

Nothing visible happens.

I built and debugged locally from the 0.2.1715.0 sources (66cb7c4) and found that ShellExecute in LaunchSettings was returning 5 (ERROR_ACCESS_DENIED according to winerror.h, line 265). The value of settingsPath was properly formed (C:\Users\brettfo\AppData\Local\Packages\WindowsTerminalDev_<some-garbage-characters>\RoamingState\profiles.json) and the file exists on disk with the expected contents.

I also found the settings file corresponding to the app installed from the Store at C:\Users\brettfo\AppData\Local\Packages\Microsoft.WindowsTerminal_<some-garbage-characters>\RoamingState\profiles.json which is also correct and changed settings are appropriately reflected in the app.

[mithunshanbhag]

I too am facing the same issue. Please take a look at the attached screen capture gif below.

Some additional details:

1. Windows Terminal (preview) version 0.2.1715.0. Downloaded from the Microsoft Store.
2. This issue also repro'es for me when I build the windows terminal's github sources locally and launch the CascadiaPackage.
3. The issue still repro'es even if I run the terminal as an elevated admin.
4. Window Insider Build: 10.0.18922.1000 (fast-ring)
5. I'm running Windows 10 on Macbook Air (4 proc, 8 GB RAM).
6. As a workaround, I'm able to tweak the profile.json file manually and configure the settings.

Please let me know if I can provide any additional details.

[DHowett-MSFT]

I accidentally made #1460 the master issue for this, so.. here goes!