SUMMARY
No matter what I do, I cannot get Spectacle to use the last used capture mode. I have "When launching Spectacle" set to "Use last-used capture mode" and "Press screenshot key to" set to "Take a new Screenshot".

STEPS TO REPRODUCE
1. Press prt sc
2. Spectacle opens in rectangle selection mode
3. Press 'New Screenshot' and select 'Active Window'
4. Spectacle takes a screenshot of the active window
5. Press prt sc (it does not matter if you copy or save the screenshot or if you close Spectacle)

OBSERVED RESULT
Spectacle opens in rectangular selection mode instead of active window

EXPECTED RESULT
Spectacle should take a screenshot of the active window again because that is the last used mode

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Arch Linux with plasma-desktop 6.4.4-1
KDE Plasma Version: 6.4.4
KDE Frameworks Version: 6.17.0
Qt Version: 6.9.1

ADDITIONAL INFORMATION
This may be a regression as I think I remember it working fine before, but I have no proof and am not sure if I am remembering correctly. If this is a regression, I also do not know which version of Spectacle this started happening in.