# Moved backend to new subnet - front-end unhappy

**URL:** <https://community.labelstud.io/t/moved-backend-to-new-subnet-front-end-unhappy/345>\
**Category:** Label Studio Support\
**Created:** [September 18, 2024, 2:48pm UTC](https://community.labelstud.io/t/moved-backend-to-new-subnet-front-end-unhappy/345 "2024-09-18T14:48:50Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![chuston](https://avatars.discourse-cdn.com/v4/letter/c/4bbf92/32.png) [@chuston](https://community.labelstud.io/u/chuston)\
**Post date:** [September 18, 2024, 2:48pm UTC](https://community.labelstud.io/t/moved-backend-to-new-subnet-front-end-unhappy/345/1 "2024-09-18T14:48:50Z")

</div>

Hi,

Our backend servers have moved to a different facility and are now on a new subnet. The data is the same, the machines are the same. But the IP addresses have changed.

We have a very small labeling project running on the `heartexlabs/label-studio:latest` docker hub image and backed by a Minio instance that provides an s3 compatible object store.

To accommodate the IP change, I went into the Settings-\>Cloud Storages page and updated the IP. The “check connection” works.

After changing the IPs, I reran the “sync storage” process.

My use of the system is mainly through the API to pull images and annotations out of the LabelStudio projects. It all works - I can retrieve annotations and grab images through the path LabelStudio returns in the task’s JSON under `data.image`.

The “Label all Tasks” UI seems to work just fine.

However, the project UI that normally lists all tasks (`/projects/2/data?tab=1`) is empty. In the browser’s JavaScript console there are a large number of the following errors:

```auto
Error: [mobx-state-tree] You are trying to read or write to an object that is no longer part of a state tree. (Object type: 'AnnotationStore', Path upon death: '/annotationStore', Subpath: 'selected', Action: ''). Either detach nodes first, or don't use objects after removing / replacing them in the tree.
    at De (mobx-state-tree.module.js:3427:18)
    at t.assertAlive (mobx-state-tree.module.js:1510:21)
    at t.unbox (mobx-state-tree.module.js:1580:14)
    at t.dehanceValue (mobx.module.js:1040:25)
    at t.get (mobx.module.js:1092:21)
    at e.read (mobx.module.js:4136:37)
    at Object.get [as selected] (mobx.module.js:4377:36)
    at DraftGuard.js:33:55
    at Object.confirmTransitionTo (history.js:131:51)
    at push (history.js:350:23)
    at navigate (react-router-dom.js:189:83)
    at onClick (react-router-dom.js:145:11)
    at Object.He (react-dom.production.min.js:52:317)
    at Ze (react-dom.production.min.js:52:471)
    at react-dom.production.min.js:53:35
    at Tr (react-dom.production.min.js:100:68)
    at jr (react-dom.production.min.js:101:380)
    at react-dom.production.min.js:113:65
    at De (react-dom.production.min.js:292:189)
    at react-dom.production.min.js:50:57
    at Pr (react-dom.production.min.js:105:469)
    at Qt (react-dom.production.min.js:75:265)
    at Xt (react-dom.production.min.js:74:124)
    at t.unstable_runWithPriority (scheduler.production.min.js:18:343)
    at Vi (react-dom.production.min.js:122:325)
    at Ae (react-dom.production.min.js:292:48)
    at Yt (react-dom.production.min.js:73:352)
    at HTMLDivElement.i (helpers.js:74:23)

```

How can this be resolved?

Versions:  
Label Studio via docker `heartexlabs/label-studio:latest`:

```auto
{
  "release": "1.12.0",
  "label-studio-os-package": {
    "version": "1.12.0",
    "short_version": "1.12",
    "latest_version_from_pypi": "1.13.1",
    "latest_version_upload_time": "2024-08-20T17:38:07",
    "current_version_is_outdated": true
  },

  "label-studio-os-backend": {
    "message": "fix: LEAP-947: Check task when we get a response from ML (#5742)",
    "commit": "b2fb5819f214d06f9300bd6c3a7853c78bdd176d",
    "date": "2024/04/17 15:26:37",
    "branch": "",
    "version": "1.12.0+0.gb2fb581"
  },

  "label-studio-converter": {
    "version": "0.0.58"
  }
}

```

Thanks!

---

<div class="post-metadata">

**Author:** ![makseq](https://yyz1.discourse-cdn.com/flex035/user_avatar/community.labelstud.io/makseq/32/26_2.png) [@makseq](https://community.labelstud.io/u/makseq)\
**Post date:** [September 18, 2024, 2:55pm UTC](https://community.labelstud.io/t/moved-backend-to-new-subnet-front-end-unhappy/345/2 "2024-09-18T14:55:17Z")

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Please switch to LS 1.13.1, it’s a chromium browser issue after v128.

---

<div class="post-metadata">

**Author:** ![chuston](https://avatars.discourse-cdn.com/v4/letter/c/4bbf92/32.png) [@chuston](https://community.labelstud.io/u/chuston)\
**Post date:** [September 28, 2024, 12:31pm UTC](https://community.labelstud.io/t/moved-backend-to-new-subnet-front-end-unhappy/345/3 "2024-09-28T12:31:11Z")

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Thank you! The timing for an auto Chrome update was horrible. Updating Label Studio did the trick.