Can't flag Single card with shortcut in browser

Hello ,

I’m having problem with flagging a single card in anki browser with shortcut (eg, CTL + 1 )

But I can easily flag multiple selected card with shortcut and also able to flag via menu → cards → flag and also easily flag in review mode as well…

using custom keyboard shortcut addon…
Also flag shortcut keys are also assigned in config…

Anki version : 2.1.66 Qt6 windows