I had frequently changed config in TranslucentFlyoutsConfig before the error
Trigger process: simply double-click TranslucentFlyoutsConfig.exe

I tried the following:
Restart TranslucentFlyoutsConfig
Restart TranslucentFlyouts V2
Sign out & sign in Windows
Restart Windows
Replace TranslucentFlyoutsConfig with V1.4.2 Release from GitHub
Replace TranslucentFlyoutsConfig with V1.4.0 Release from GitHub
Unfortunately, although TranslucentFlyouts V2 is working correctly, TranslucentFlyoutsConfig is still... :(

I had frequently changed config in TranslucentFlyoutsConfig before the error

Trigger process: simply double-click TranslucentFlyoutsConfig.exe
I tried the following:
Restart TranslucentFlyoutsConfig
Restart TranslucentFlyouts V2
Sign out & sign in Windows
Restart Windows
Replace TranslucentFlyoutsConfig with V1.4.2 Release from GitHub
Replace TranslucentFlyoutsConfig with V1.4.0 Release from GitHub
Unfortunately, although TranslucentFlyouts V2 is working correctly, TranslucentFlyoutsConfig is still... :(
