Update not working, its always say: Skipped another update already running

[agostop]

Describe the bug

I used 2 minutes interval to check the image update, at the start, every thing is ok, but 1 hour ago, the error is coming, the log message is: Skipped another update already running. , and the log will only output this, even if there is an image that needs to be updated, it will still not working, forever, until when I restart it.
I monitored for 8 images, is there too much?

docker-compose.yml

services:
  watchtower:
    image: watchtower:latest
    environment:
      - WATCHTOWER_REMOVE_VOLUMES=true
      - TZ=Asia/Chongqing
      - WATCHTOWER_CLEANUP=true
      - WATCHTOWER_INCLUDE_RESTARTING=true
      - WATCHTOWER_POLL_INTERVAL=120
      - WATCHTOWER_LABEL_ENABLE=true
      - WATCHTOWER_NO_STARTUP_MESSAGE=true
      - WATCHTOWER_DEBUG=true
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - ~/.docker/config.json:/config.json

Steps to reproduce

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior

Update it when a new image is available

Screenshots

No response

Environment

• Platform
• Architecture
• Docker Version

Your logs

watchtower-1  | time="2025-05-10T17:44:27+08:00" level=debug msg="Got image name: reg/xxxxx/xxxx/xxxxx:test"
watchtower-1  | time="2025-05-10T17:44:27+08:00" level=debug msg="Credentials loaded"
watchtower-1  | time="2025-05-10T17:44:27+08:00" level=debug msg="Checking if pull is needed" container=/xxxxxx image="reg/xxxxx/xxxx/xxxxx:test"
watchtower-1  | time="2025-05-10T17:44:27+08:00" level=debug msg="Built challenge URL" URL="https://xxxxx"
watchtower-1  | time="2025-05-10T17:44:27+08:00" level=debug msg="Got response to challenge request" header="Bearer realm=\"xxxxx\",service=\"docker\"" status="401 Unauthorized"
watchtower-1  | time="2025-05-10T17:44:27+08:00" level=debug msg="Checking challenge header content" realm="https://auth.pkg.coding.net/artifacts-auth/docker/jwt?host=g-gssj2688-docker.pkg.coding.net" service=docker
watchtower-1  | time="2025-05-10T17:44:27+08:00" level=debug msg="Setting scope for auth token" xxx scope="repository:xxxxxx"
watchtower-1  | time="2025-05-10T17:44:27+08:00" level=debug msg="Credentials found."
watchtower-1  | time="2025-05-10T17:46:02+08:00" level=debug msg="Skipped another update already running."
watchtower-1  | time="2025-05-10T17:46:02+08:00" level=debug msg="Scheduled next run: 2025-05-10 17:48:02 +0800 CST"
watchtower-1  | time="2025-05-10T17:48:02+08:00" level=debug msg="Skipped another update already running."
watchtower-1  | time="2025-05-10T17:48:02+08:00" level=debug msg="Scheduled next run: 2025-05-10 17:50:02 +0800 CST"
watchtower-1  | time="2025-05-10T17:50:02+08:00" level=debug msg="Skipped another update already running."
watchtower-1  | time="2025-05-10T17:50:02+08:00" level=debug msg="Scheduled next run: 2025-05-10 17:52:02 +0800 CST"
watchtower-1  | time="2025-05-10T17:52:02+08:00" level=debug msg="Skipped another update already running."
watchtower-1  | time="2025-05-10T17:52:02+08:00" level=debug msg="Scheduled next run: 2025-05-10 17:54:02 +0800 CST"
watchtower-1  | time="2025-05-10T17:54:02+08:00" level=debug msg="Skipped another update already running."
watchtower-1  | time="2025-05-10T17:54:02+08:00" level=debug msg="Scheduled next run: 2025-05-10 17:56:02 +0800 CST"
watchtower-1  | time="2025-05-10T17:56:02+08:00" level=debug msg="Skipped another update already running."
watchtower-1  | time="2025-05-10T17:56:02+08:00" level=debug msg="Scheduled next run: 2025-05-10 17:58:02 +0800 CST"
watchtower-1  | time="2025-05-10T17:58:02+08:00" level=debug msg="Skipped another update already running."
watchtower-1  | time="2025-05-10T17:58:02+08:00" level=debug msg="Scheduled next run: 2025-05-10 18:00:02 +0800 CST"
watchtower-1  | time="2025-05-10T18:00:02+08:00" level=debug msg="Skipped another update already running."
watchtower-1  | time="2025-05-10T18:00:02+08:00" level=debug msg="Scheduled next run: 2025-05-10 18:02:02 +0800 CST"
watchtower-1  | time="2025-05-10T18:02:02+08:00" level=debug msg="Skipped another update already running."
watchtower-1  | time="2025-05-10T18:02:02+08:00" level=debug msg="Scheduled next run: 2025-05-10 18:04:02 +0800 CST"
watchtower-1  | time="2025-05-10T18:04:02+08:00" level=debug msg="Skipped another update already running."
watchtower-1  | time="2025-05-10T18:04:02+08:00" level=debug msg="Scheduled next run: 2025-05-10 18:06:02 +0800 CST"
watchtower-1  | time="2025-05-10T18:06:02+08:00" level=debug msg="Skipped another update already running."
watchtower-1  | time="2025-05-10T18:06:02+08:00" level=debug msg="Scheduled next run: 2025-05-10 18:08:02 +0800 CST"
watchtower-1  | time="2025-05-10T18:08:02+08:00" level=debug msg="Skipped another update already running."
watchtower-1  | time="2025-05-10T18:08:02+08:00" level=debug msg="Scheduled next run: 2025-05-10 18:10:02 +0800 CST"
watchtower-1  | time="2025-05-10T18:10:02+08:00" level=debug msg="Skipped another update already running."
watchtower-1  | time="2025-05-10T18:10:02+08:00" level=debug msg="Scheduled next run: 2025-05-10 18:12:02 +0800 CST"
watchtower-1  | time="2025-05-10T18:12:02+08:00" level=debug msg="Skipped another update already running."
watchtower-1  | time="2025-05-10T18:12:02+08:00" level=debug msg="Scheduled next run: 2025-05-10 18:14:02 +0800 CST"
watchtower-1  | time="2025-05-10T18:14:02+08:00" level=debug msg="Skipped another update already running."
watchtower-1  | time="2025-05-10T18:14:02+08:00" level=debug msg="Scheduled next run: 2025-05-10 18:16:02 +0800 CST"
watchtower-1  | time="2025-05-10T18:16:02+08:00" level=debug msg="Skipped another update already running."

Additional context

No response

[github-actions]

Hi there! 👋🏼 As you're new to this repo, we'd like to suggest that you read our code of conduct as well as our contribution guidelines. Thanks a bunch for opening your first issue! 🙏

[bondskin]

Did you notice
"Got response to challenge request" header="Bearer realm="xxxxx",service="docker"" status="401 Unauthorized""?

[agostop]

Did you notice "Got response to challenge request" header="Bearer realm="xxxxx",service="docker"" status="401 Unauthorized""?

Hi, thank you for reply me, I notice that, but it seems not a problem, because when it is working, it will also print this log.