Close FTP connection immediately after the successful upload?

[samsour]

Bug Description Is it possible that the GitHub Runner does not close the FTP connection immediately after the successful upload?

I have a strange error. Whenever I trigger my pipeline several times within a short period of time (3-5 minutes each time), it just fails at some point and interrupts the process.

*Note: dangerous-clean-slate is necessary for me, but otherwise I cannot overwrite existing files on the server.

My Config

name: 🚀 Deploy website

# workflow triggers
on:
  push:
    branches: [develop]
  pull_request:
    branches: [develop]
  repository_dispatch:
    types: [publish_page]

jobs:
  pre-job:
    name: Pre-job
    runs-on: ubuntu-latest
    steps:
      - uses: technote-space/auto-cancel-redundant-workflow@v1
      - name: ♻️ Cancel redundant workflows
        run: echo "✓ Cancel redundant workflows finished"

  web-deploy:
    name: 🎉 Deploy site triggered by ${{ github.event_name }}
    runs-on: ubuntu-latest
    steps:
      - name: 🚚 Get latest code
        uses: actions/checkout@v2

      - name: ⚙️ Use Node.js 14
        uses: actions/setup-node@v2-beta
        with:
          node-version: 14.x

      - name: 🔨 Build Project
        run: |
          yarn install
          yarn generate
      - name: 📂 Sync files
        uses: SamKirkland/[email protected]
        with:
          server: ${{ secrets.FTP_SERVER }}
          username: ${{ secrets.FTP_USER }}
          password: ${{ secrets.FTP_PASSWORD }}
          protocol: ftps
          port: 21
          local-dir: dist/
          server-dir: stage/
          dangerous-clean-slate: true

My Action Log

400 level error from server when performing action - retrying...
FTPError: 425 Unable to build data connection: Operation not permitted
    at FTPContext._onControlSocketData (/home/runner/work/_actions/SamKirkland/FTP-Deploy-Action/4.1.0/dist/index.js:3945:39)
    at TLSSocket.<anonymous> (/home/runner/work/_actions/SamKirkland/FTP-Deploy-Action/4.1.0/dist/index.js:3786:44)
    at TLSSocket.emit (events.js:210:5)
    at addChunk (_stream_readable.js:309:12)
    at readableAddChunk (_stream_readable.js:286:13)
    at TLSSocket.Readable.push (_stream_readable.js:224:10)
    at TLSWrap.onStreamRead (internal/stream_base_commons.js:182:23) {
  name: 'FTPError',
  code: 425
}