Recently F-keys and utility F-keys (brightness, volume etc) are mixed up

[alber70g]

I'm using an external keyboard. When I have the keyboard connected, I want my function keys to work the same as on the MacBook keys, which is with keyboard setting "Use F1 F2 etc. keys as standard function keys" OFF.

I have another complex modification, that combines RIGHT_SHIFT with the top row (numbers 1-0, - and =) to be regular F1-F12.

However, recently this stopped working, and the RIGHT_SHIFT+top-row started behaving just as the F-keys.

Anything that can be done to prevent this?

These are my current settings, maybe I'm doing something wrong. Which seems unlikely, as it used to be working earlier.

MacOS Settings

"Use F1 F2 etc. keys as standard function keys" -> OFF

Complex modification

RShift + Number keys to F-keys

{
    "description": "RShift + Numbers to F-keys",
    "manipulators": [
	{
	    "from": {
		"key_code": "1",
		"modifiers": {
		    "mandatory": ["right_shift"],
		    "optional": ["fn", "left_gui", "left_control", "left_alt", "right_gui", "right_control", "right_alt", "left_shift"]
		}
	    },
	    "to": [{ "key_code": "f1" }],
	    "type": "basic"
	},
	{
	    "from": {
		"key_code": "2",
		"modifiers": {
		    "mandatory": ["right_shift"],
		    "optional": ["fn", "left_gui", "left_control", "left_alt", "right_gui", "right_control", "right_alt", "left_shift"]
		}
	    },
	    "to": [{ "key_code": "f2" }],
	    "type": "basic"
	},
	{
	    "from": {
		"key_code": "3",
		"modifiers": {
		    "mandatory": ["right_shift"],
		    "optional": ["fn", "left_gui", "left_control", "left_alt", "right_gui", "right_control", "right_alt", "left_shift"]
		}
	    },
	    "to": [{ "key_code": "f3" }],
	    "type": "basic"
	},
	{
	    "from": {
		"key_code": "4",
		"modifiers": {
		    "mandatory": ["right_shift"],
		    "optional": ["fn", "left_gui", "left_control", "left_alt", "right_gui", "right_control", "right_alt", "left_shift"]
		}
	    },
	    "to": [{ "key_code": "f4" }],
	    "type": "basic"
	},
	{
	    "from": {
		"key_code": "5",
		"modifiers": {
		    "mandatory": ["right_shift"],
		    "optional": ["fn", "left_gui", "left_control", "left_alt", "right_gui", "right_control", "right_alt", "left_shift"]
		}
	    },
	    "to": [{ "key_code": "f5" }],
	    "type": "basic"
	},
	{
	    "from": {
		"key_code": "6",
		"modifiers": {
		    "mandatory": ["right_shift"],
		    "optional": ["fn", "left_gui", "left_control", "left_alt", "right_gui", "right_control", "right_alt", "left_shift"]
		}
	    },
	    "to": [{ "key_code": "f6" }],
	    "type": "basic"
	},
	{
	    "from": {
		"key_code": "7",
		"modifiers": {
		    "mandatory": ["right_shift"],
		    "optional": ["fn", "left_gui", "left_control", "left_alt", "right_gui", "right_control", "right_alt", "left_shift"]
		}
	    },
	    "to": [{ "key_code": "f7" }],
	    "type": "basic"
	},
	{
	    "from": {
		"key_code": "8",
		"modifiers": {
		    "mandatory": ["right_shift"],
		    "optional": ["fn", "left_gui", "left_control", "left_alt", "right_gui", "right_control", "right_alt", "left_shift"]
		}
	    },
	    "to": [{ "key_code": "f8" }],
	    "type": "basic"
	},
	{
	    "from": {
		"key_code": "9",
		"modifiers": {
		    "mandatory": ["right_shift"],
		    "optional": ["fn", "left_gui", "left_control", "left_alt", "right_gui", "right_control", "right_alt", "left_shift"]
		}
	    },
	    "to": [{ "key_code": "f9" }],
	    "type": "basic"
	},
	{
	    "from": {
		"key_code": "0",
		"modifiers": {
		    "mandatory": ["right_shift"],
		    "optional": ["fn", "left_gui", "left_control", "left_alt", "right_gui", "right_control", "right_alt", "left_shift"]
		}
	    },
	    "to": [{ "key_code": "f10" }],
	    "type": "basic"
	},
	{
	    "from": {
		"key_code": "hyphen",
		"modifiers": {
		    "mandatory": ["right_shift"],
		    "optional": ["fn", "left_gui", "left_control", "left_alt", "right_gui", "right_control", "right_alt", "left_shift"]
		}
	    },
	    "to": [{ "key_code": "f11" }],
	    "type": "basic"
	},
	{
	    "from": {
		"key_code": "equal_sign",
		"modifiers": {
		    "mandatory": ["right_shift"],
		    "optional": ["fn", "left_gui", "left_control", "left_alt", "right_gui", "right_control", "right_alt", "left_shift"]
		}
	    },
	    "to": [{ "key_code": "f12" }],
	    "type": "basic"
	}
    ]
}

Video

out-deduped-v2.mp4

[tekezo]

Please send fn+f1 key.
https://karabiner-elements.pqrs.org/docs/help/how-to/function-keys/

[alber70g]

Sorry, I might be ignorant, but do you want my keycaps? 😂
What do you mean? I have configured shift+1 to send f1.

Oh wait... you mean the "to" part of below snippet should send fn+f1.... ah I get it now. Might help to be less cryptic <3

    {
	    "from": {
		"key_code": "1",
		"modifiers": {
		    "mandatory": ["right_shift"],
		    "optional": ["fn", "left_gui", "left_control", "left_alt", "right_gui", "right_control", "right_alt", "left_shift"]
		}
	    },
	    "to": [{ "key_code": "f1" }],
	    "type": "basic"
	},

[Jendker]

Change "to" like in the example linked by takezo. You need:

            "to": [
                {
                    "key_code": "f1",
                    "modifiers": ["fn"]
                }
            ],