Headless mode incompatibility with recent window attaching #17976
Description
Windows Terminal version
1.20.11781.0
Windows build number
10.0.22631 Build 22631
Other Software
No response
Steps to reproduce
Enable the headless mode via the settings json. ("compatibility.allowHeadless": true)
Set "New instance behavior" setting to one of the attaching to the most recently used window options.
Run the Terminal and close all windows to put it to the headless mode.
Try to start a new instance.
Expected Behavior
It should detect that there are no active windows to attach, and start a new instance.
Windows.Terminal.Bug.Report.mp4
Actual Behavior
No actual Terminal instance is properly created. It looks like it is attempting to create one but fails.