Cannot record play key in "Click here to record a shortcut"

Describe the bug
I click to add a new keyboard shortcut. The focus is set to "click here to record a shortcut". I click the play button on my keyboard. The expected behavior is that the play button is captured and recorded by BTT as the key that I want to map. The actual behavior is that my music starts/stops and the "click here to record a shortcut" box is still empty.

Affected input device (e.g. MacBook Trackpad, Magic Mouse/Trackpad, Touch Bar, etc.):
The built in unmodified touch bar, and also my external Logitech k860 which is connected via Bluetooth.

Device information:

  • Type of Mac: MacBook Pro (16-inch, 2019)
  • macOS version: Catalina 10.15.6
  • BetterTouchTool version: 3.402

Additional information (e.g. StackTraces, related issues, screenshots, workarounds, etc.):
Problem seems to reproduce for other keys on the external keyboard, such as brightness up, brightness down, etc.