Zend certified PHP/Magento developer

Karabiner Elements requests Input Monitoring permission, even though it’s already granted

I’m trying to set up Karabiner Elements 14.5.0 on a Mac Mini running macOS Monterey 12.4.

After installation, when I open the app, it requests Input Monitoring permission. I have attempted to grant it in the directed location in System Preferences, namely Security & Privacy > Privacy > Input Monitoring, and checking karabiner_grabber and karabiner_observer. However, the app does not work as expected after doing so and then closing the prompt window. Reopening the app produces the same prompt. See screenshot.

Windows showing request for permissions and same permissions already granted

How can I get a working instance of Karabiner Elements on my machine?