Nodes lining errors flags in workspace

Hello,
sorry for a stupid question.
But in the workspace some nodes have a "lining errors" flag (NR 4.0.8, RpI 5). In some cases a rearrange works to get rid of it. But in some cases the flag remains. The Arrange-options of the sidebar are no help.
What is the reason and what is to do.
Thank you so much

Have a look at the linter tab on the right hand side to see what the word are.

Very fine. Most of the flags have disappeared. One exception remains :smile:

[
    {
        "id": "9462b5849c94b6bd",
        "type": "function",
        "z": "48ebaffd2e21ec67",
        "name": "",
        "func": "msg.payload =!msg.payload; \nreturn msg;\n",
        "outputs": 1,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 477.93328857421875,
        "y": 924.9332885742188,
        "wires": [
            [
                "1b2bd1dcc8faaa25"
            ]
        ]
    },
    {
        "id": "458aa5ad5d212120",
        "type": "debug",
        "z": "48ebaffd2e21ec67",
        "name": "",
        "active": true,
        "console": "false",
        "complete": "false",
        "x": 754.9333114624023,
        "y": 902.9334325790405,
        "wires": []
    },
    {
        "id": "1b2bd1dcc8faaa25",
        "type": "ui_template",
        "z": "48ebaffd2e21ec67",
        "group": "12696fe3.b721d",
        "name": "On / Off",
        "order": 3,
        "width": "0",
        "height": "0",
        "format": "<mbutton class=\"vibrate filled touched bigfont rounded\" style=\"background-color:#1AAAFF\" ng-click=\"send({payload: msg.payload })\"> \n\t<svg  width=\"100%\" height=\"90px\" viewBox=\"0 0 800 200\">\n\t\t<g id=\"Button_Long\">  \n\t\t\t<rect fill=\"#1AAAFF\" width=\"800\" height=\"200\"/>\n\t\t\t\n\t\t\t<g ng-style=\"{fill: (msg.payload || 0) ? 'green' : 'red'}\">\n\t\t\t\t<rect width=\"800\" height=\"200\" rx=\"80\" ry=\"80\"/>\n\t\t\t</g>\n\n\t\t\t<g ng-style=\"{fill: (msg.payload || 0) ? '#AAFFAA' : '#CCCCFF'  }\">\n\t\t\t\t<rect x=\"11\" y=\"10\" width=\"778\" height=\"180\" rx=\"90\" ry=\"90\"/>\n\t\t\t</g>\n\n\t\t\t<g ng-style=\"{fill: (msg.payload || 0) ? 'green' : 'red'}\">    \n\t\t\t\t<text x=\"400\" y=\"125\" style=\"text-anchor:middle\"  font-weight=\"bold\" font-size=\"80\" font-family=\"Arial\">{{(msg.payload||0)? \" EIN \" : \"  AUS  \"}} </text>\n\t\t\t</g> \n\t\t\t\n\t\t</g>\n  </svg>\n</mbutton>",
        "storeOutMessages": false,
        "fwdInMessages": false,
        "resendOnRefresh": false,
        "templateScope": "local",
        "className": "",
        "x": 477.93328857421875,
        "y": 864.9332885742188,
        "wires": [
            [
                "9462b5849c94b6bd",
                "458aa5ad5d212120"
            ]
        ]
    },
    {
        "id": "12696fe3.b721d",
        "type": "ui_group",
        "name": "Angular Filter / ui-template Ausg.",
        "tab": "ba430aad.253a48",
        "order": 5,
        "disp": true,
        "width": "6",
        "collapse": false,
        "className": ""
    },
    {
        "id": "ba430aad.253a48",
        "type": "ui_tab",
        "name": "11 Dashboard advanced",
        "icon": "dashboard",
        "order": 11,
        "disabled": false,
        "hidden": false
    }
]

What error is it flagging?

[Edit] I am not seeing any linting errors with that flow.

All at its best now. Reason is loop detected. Ignored now. Thank you so much again.