Description of module won't display

[Xkonti]

TLDR:

When there is one module containing at least 2 files and one of those files contains a function, the module's description won't show up in the module's docs.

Setup

Lets say we have three files:

collections-helpers.ts:

export function pickRandom<T>(collection: T[]): T | undefined { ... }
function doTimes<T>(times: number, action: (index: number) => T): T[] { ... }

subscribers-set.ts:

export class SubscribersSet<T> implements Iterable<T> { ... }

time-helpers.ts:

export async function delay(ms: number): Promise<void> { ... }

When problem happens

When I'll add the collections-helpers.ts to the module with any other file, the module description won't show up.

A module containing:

• collections-helpers.ts - will display the description
• subscribers-set.ts - will display the description
• time-helpers.ts - will display the description
• collections-helpers.ts and subscribers-set.ts - WON'T display the description
• collections-helpers.ts and time-helpers.ts - WON'T display the description
• subscribers-set.ts and time-helpers.ts - WON'T display the description

I have other module that doesn't have this functions only file problem and then the module description is displayed just fine.

Environment:

package.json:

"scripts": {
  "docs": "typedoc --tsconfig"
},
"dependencies": {
  "@nestjs/common": "^7.4.2",
  "@nestjs/config": "^0.5.0",
  "@nestjs/core": "^7.4.2",
  "@nestjs/platform-express": "^7.4.2",
  "faker": "^4.1.0",
  "node-fetch": "^2.6.0",
  "reflect-metadata": "^0.1.13",
  "rimraf": "^3.0.2",
  "rxjs": "^6.6.2"
},
"devDependencies": {
  "@nestjs/cli": "^7.4.0",
  "@nestjs/schematics": "^7.0.0",
  "@nestjs/testing": "^7.4.0",
  "@types/express": "^4.17.0",
  "@types/faker": "^4.1.12",
  "@types/jest": "^26.0.0",
  "@types/node": "^14.0.0",
  "@types/supertest": "^2.0.10",
  "@typescript-eslint/eslint-plugin": "^3.9.0",
  "@typescript-eslint/parser": "^3.9.0",
  "eslint": "^7.7.0",
  "eslint-config-airbnb-base": "^14.2.0",
  "eslint-config-prettier": "^6.11.0",
  "eslint-plugin-import": "^2.22.0",
  "jest": "^26.4.0",
  "prettier": "^2.0.0",
  "supertest": "^4.0.0",
  "ts-jest": "26.2.0",
  "ts-loader": "^8.0.0",
  "ts-node": "^8.10.0",
  "tsconfig-paths": "^3.9.0",
  "typedoc": "0.18.0",
  "typedoc-plugin-external-module-name": "4.0.3",
  "typescript": "^3.9.7"
}

tsconfig.json:

{
  "compilerOptions": {
    "module": "commonjs",
    "declaration": true,
    "removeComments": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "allowSyntheticDefaultImports": true,
    "target": "es2018",
    "sourceMap": true,
    "outDir": "./dist",
    "baseUrl": "./",
    "incremental": true,
    "strictNullChecks": true
  },
  "typedocOptions": {
    "inputFiles": ["./src"],
    "mode": "modules",
    "out": "docs",
    "exclude": "**/*+(index|.spec|.e2e).ts",
    "excludePrivate": true,
    "excludeExternals": true,
    "stripInternal": true,
    "name": "HubHazard Core",
    "includeVersion": true
  }
}