Template creates empty solution

I do not know exactly what I have changed but my template was working just fine until it was not. Right now what it does is it always creates two solutions, one is the exact copy of what I have in my template and an empty one (which it opens), however, the source files are not copied whatsoever, and I really cannot pinpoint the root cause of this issue.

Solution template, 3 projects.

Solution name : NugetPackageTemplate Project names : NugetPackageTemplate, NugetPackageTemplate.Tests, DemoConsoleApp

template.json :

{
  "$schema": "http://json.schemastore.org/template",
  "author": "authorName",
  "classifications": [ "DESKTOP", "Solution", "departmentName" ],
  "name": "NuGet Package",
  "shortName": "custnuget",
  "defaultName": "MyNugetPackage",
  "identity": "Infineon.Templates.CSharp",
  "description": "This is a template for creating NuGets following departmentName Conventions.",
  "tags": {
    "language": "C#",
    "type": "solution",
    "editorTreatAs": "solution"
  },
  "sourceName": "NugetPackage",
  "preferNameDirectory": true,
  "guids": [
    "2355D869-0117-451C-990A-5CDAA69D18C8",
    "6DCA3064-C4B2-4551-9B30-1DBC789B3CE2",
    "EC9C54C0-F951-4F15-9493-31EFE98E1F83"
  ],
  "symbols": {
    "Framework": {
      "type": "parameter",
      "description": "The target framework for the project.",
      "datatype": "choice",
      "choices": [
        {
          "choice": "net8.0",
          "description": "Target net8.0"
        }
      ],
      "replaces": "net8.0",
      "defaultValue": "net8.0"
    },
    "ProjectType": {
      "type": "parameter",
      "dataType": "choice",
      "choices": [
        {
          "choice": "Exe",
          "description": "Executable"
        },
        {
          "choice": "Library",
          "description": "DLL"
        }
      ],
      "displayName": "Project type",
      "replaces": "outputType",
      "defaultValue": "Library"
    },
    "IsExecutable": {
      "type": "computed",
      "datatype": "bool",
      "value": "(ProjectType == \"Exe\")"
    }
  },
  "sources": [
    {
      "modifiers": [
        {
          "condition": "(!IsExecutable)",
          "exclude": "NugetPackageTemplate/Startup.cs"
        }
      ]
    }
  ]
}

ide.host.json :

{
  "$schema": "http://json.schemastore.org/vs-2017.3.host",
  "icon": "logo.png",
  "symbolInfo": [
    {
      "id": "ProjectType",
      "isVisible": true,
      "defaultValue": "Library",
      "choices": [
        {
          "id": "Exe",
          "name": {
            "text": "Executable"
          }
        },
        {
          "id": "Library",
          "name": {
            "text": "DLL"
          }
        }
      ]
    }
  ]
}

Created project :

sayedihashimi / template-sample

Template creates empty solution #78