# Lockups when using groups

**URL:** <https://discourse.nodered.org/t/lockups-when-using-groups/31934>\
**Category:** General\
**Created:** [24 August 2020 07:00 UTC](https://discourse.nodered.org/t/lockups-when-using-groups/31934 "2020-08-24T07:00:22Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![dougle03](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/dougle03/32/32979_2.png) [@dougle03](https://discourse.nodered.org/u/dougle03)\
**Post date:** [24 August 2020 07:00 UTC](https://discourse.nodered.org/t/lockups-when-using-groups/31934/1 "2020-08-24T07:00:22Z")

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Morning all,  
Having a few problems with the GUI freezing when using the new node grouping feature.  
Copying a node and then pasting it within a group of nodes seems to trigger it!  
It does not come back, F5 does nothing, CTRL+F5 does nothing, only closing the tab and opening a new one restores functions (Google Chrome).

Anyone else having this problem?

If I ungroup the collection of nodes, make my changes then re-group, all seems to be ok.  
I'm running 1.1.3 in Docker on a Linux machine (Synology NAS).

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**Author:** ![cymplecy](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/cymplecy/32/2773_2.png) [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Post date:** [24 August 2020 10:15 UTC](https://discourse.nodered.org/t/lockups-when-using-groups/31934/2 "2020-08-24T10:15:31Z")

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Tried it out on one of mine but doesn't lockup (Vivaldi Browser on a Pi - NR 1.1.3 running on Win10)

_[edit Also worked when using Chrome on the Win10 machine itself)]_

What machine/OS is your Google Chrome running on?

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**Author:** ![ristomatti](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/ristomatti/32/5857_2.png) [@ristomatti](https://discourse.nodered.org/u/ristomatti)\
**Post date:** [24 August 2020 22:42 UTC](https://discourse.nodered.org/t/lockups-when-using-groups/31934/3 "2020-08-24T22:42:08Z")

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I ran across the same issue couple of days ago. I haven't had time to pinpoint the issue but the scenario sounds very similar. I think I added a new node to an existing group which caused the tab to freeze. There's definitely a bug there.

If you could find/describe reproducible step by step instructions how to make it happen, it'd surely help resolving the issue.

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**Author:** ![cymplecy](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/cymplecy/32/2773_2.png) [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Post date:** [26 August 2020 09:10 UTC](https://discourse.nodered.org/t/lockups-when-using-groups/31934/4 "2020-08-26T09:10:40Z")

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Just had a lockup after mistakenly dropping a copied node into a group but can't reproduce it

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**Author:** ![ristomatti](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/ristomatti/32/5857_2.png) [@ristomatti](https://discourse.nodered.org/u/ristomatti)\
**Post date:** [26 August 2020 09:48 UTC](https://discourse.nodered.org/t/lockups-when-using-groups/31934/5 "2020-08-26T09:48:09Z")

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If I remember correctly for me the trigger was dropping a pasted node on top of a group and then connecting it to another node without deploying in between. Can you reproduce it that way?

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**Author:** ![cymplecy](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/cymplecy/32/2773_2.png) [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Post date:** [26 August 2020 09:53 UTC](https://discourse.nodered.org/t/lockups-when-using-groups/31934/6 "2020-08-26T09:53:35Z")

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Couldn't get it to do it again -tried several times until I gave up and pressed Ctrl-Z to undo my last action and then it locked up

But can't repeat that effect now

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**Author:** ![dougle03](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/dougle03/32/32979_2.png) [@dougle03](https://discourse.nodered.org/u/dougle03)\
**Post date:** [26 August 2020 10:01 UTC](https://discourse.nodered.org/t/lockups-when-using-groups/31934/7 "2020-08-26T10:01:42Z")

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Running on Windows 10 Pro fully patched, Chrome browser also fully patched. NodeRed in a docker on a Synology NAS using watchtower and is the latest (Not Dev).  
P

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**Author:** ![dougle03](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/dougle03/32/32979_2.png) [@dougle03](https://discourse.nodered.org/u/dougle03)\
**Post date:** [26 August 2020 10:02 UTC](https://discourse.nodered.org/t/lockups-when-using-groups/31934/8 "2020-08-26T10:02:50Z")

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Yes, copy and paste within a group does seem to trigger the lock up.  
I've taken to ungrouping to make changes then re-group when done.

Grouping is a nice feature, but it's clearly got some way to go.

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [25 October 2020 10:02 UTC](https://discourse.nodered.org/t/lockups-when-using-groups/31934/9 "2020-10-25T10:02:56Z")

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