Copy to clipboard works from the bar but not flameshot gui on MacOS

[d4hines]

I'm on MacOS. When I invoke the screen capture gui by clicking on the icon, I can copy to clipboard just fine:

But when I invoke flameshot gui and try to save to clipboard, it reports as successful but I can't copy paste it - it's as though it's empty:

flameshot gui
qt.qpa.window: Window position QRect(0,-37 3648x1117) outside any known screen, using primary screen
QLayout: Attempting to add QLayout "" to SidePanelWidget "", which already has a layout
2025-02-05 16:26:16.043 .flameshot-wrapped[4553:2191671] +[IMKClient subclass]: chose IMKClient_Modern
2025-02-05 16:26:16.043 .flameshot-wrapped[4553:2191671] +[IMKInputSession subclass]: chose IMKInputSession_Modern
flameshot: info: Capture saved to clipboard.

I've installed flameshot through nix, but I had the same issue when I used brew.

This is not a blocker now that I've figured out (today) that I can just click the icon. But it would be nice if it worked from the command line (which I invoke via keyboard shortcuts in my window manager) as well.