My team and I are updating the Angular version of our app. We were using version 10.2.3 and migrated to 11.2.19 in angular/cli

Before updating, our environments files were replaced by fileReplacements

But now that we’ve updated them, they no longer work.

Package.json

"dependencies": {
    "@amcharts/amcharts4": "^4.10.19",
    "@angular-devkit/build-angular": "^0.1002.3",
    "@angular/animations": "^11.2.14",
    "@angular/cdk": "^9.2.4",
    "@angular/common": "^11.2.14",
    "@angular/compiler": "^11.2.14",
    "@angular/core": "^11.2.14",
    "@angular/flex-layout": "^9.0.0-beta.31",
    "@angular/forms": "^11.2.14",
    "@angular/localize": "^11.2.14",
    "@angular/material": "^9.2.4",
    "@angular/platform-browser": "^11.2.14",
    "@angular/platform-browser-dynamic": "^11.2.14",
    "@angular/router": "^11.2.14",
    "@aspnet/signalr": "^3.0.0-preview6.19307.2",
    //-------------------//
  },
  "devDependencies": {
    "@angular/cli": "^11.2.19",
    "@angular/compiler-cli": "^11.2.14",
    "@angular/language-service": "^11.2.14",
    "@fortawesome/fontawesome-free": "^5.15.3",
    "@types/crypto-js": "^3.1.47",
    "@types/jasmine": "^2.8.17",
    "@types/jasminewd2": "^2.0.9",
    "@types/jspdf": "^2.0.0",
    "@types/node": "^12.20.15",
    "codelyzer": "^5.1.2",
    "g": "^2.0.1",
    "http-server": "^0.12.3",
    "jasmine-core": "~3.5.0",
    "jasmine-spec-reporter": "~5.0.0",
    "karma": "~6.4.3",
    "karma-chrome-launcher": "~3.1.0",
    "karma-coverage-istanbul-reporter": "~3.0.2",
    "karma-jasmine": "~4.0.0",
    "karma-jasmine-html-reporter": "^1.5.0",
    "protractor": "~7.0.0",
    "ts-node": "~7.0.0",
    "tslint": "~6.1.0",
    "typescript": "~4.0.8",
    "webpack-bundle-analyzer": "^3.9.0"
  }

angular.json

"configurations": {
            "production": {
              "budgets": [
                {
                  "type": "anyComponentStyle",
                  "maximumWarning": "20kb"
                }
              ],
              "fileReplacements": [
                {
                  "replace": "src/assets/environments/environment.json",
                  "with": "src/assets/environments/environment.prod.json"
                }
              ],
              "optimization": true,
              "outputHashing": "all",
              "sourceMap": false,
              "extractCss": true,
              "namedChunks": false,
              "aot": true,
              "extractLicenses": true,
              "vendorChunk": false,
              "buildOptimizer": true
            },
            "dev": {
              "budgets": [
                {
                  "type": "anyComponentStyle",
                  "maximumWarning": "20kb"
                }
              ],
              "fileReplacements": [
                {
                  "replace": "src/assets/environments/environment.json",
                  "with": "src/assets/environments/environment.dev.json"
                }
              ],
              "optimization": true,
              "outputHashing": "all",
              "sourceMap": false,
              "extractCss": true,
              "namedChunks": false,
              "aot": true,
              "extractLicenses": true,
              "vendorChunk": false,
              "buildOptimizer": true
            },
            "dev-machine": {
              "budgets": [
                {
                  "type": "anyComponentStyle",
                  "maximumWarning": "20kb"
                }
              ],
              "fileReplacements": [
                {
                  "replace": "src/assets/environments/environment.json",
                  "with": "src/assets/environments/environment.dev-machine.json"
                }
              ]
            },
            "design-machine": {
              "budgets": [
                {
                  "type": "anyComponentStyle",
                  "maximumWarning": "20kb"
                }
              ],
              "fileReplacements": [
                {
                  "replace": "src/assets/environments/environment.json",
                  "with": "src/assets/environments/environment.dev-machine.json"
                }
              ],
              "sourceMap": false
            }
          }
        }

We noticed that when returning @angular-devkit/build-angular to version 0.1002.3, the replace happens again, but if we use the version suggested by the Angular update (version 0.1102.18) it no longer works.