# \#possible-bug

**URL:** https://discourse.nodered.org/tag/possible-bug/70.md

[Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md)

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## [Error when trying to add a custom sidebar tab](https://discourse.nodered.org/t/error-when-trying-to-add-a-custom-sidebar-tab/101267)

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**Author:** [@TotallyInformation](https://discourse.nodered.org/u/TotallyInformation)\
**Replies:** 5\
**Last updated:** [12 June 2026 15:39 UTC](https://discourse.nodered.org/t/error-when-trying-to-add-a-custom-sidebar-tab/101267 "2026-06-12T15:39:36Z")

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Moved from the NR v5 thread as I think this might be a bug from before then? Ah, another sidebar issue? UIBUILDER has the uib-sidebar node that creates a custom sidebar - in NR5, unless I'm missing something, there do…

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## [No default tab after upgrade to 1.26.0](https://discourse.nodered.org/t/no-default-tab-after-upgrade-to-1-26-0/98349)

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**Author:** [@gerrybartley](https://discourse.nodered.org/u/gerrybartley)\
**Replies:** 2\
**Last updated:** [28 July 2025 18:29 UTC](https://discourse.nodered.org/t/no-default-tab-after-upgrade-to-1-26-0/98349 "2025-07-28T18:29:52Z")

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Just upgraded to Dashboard-2 I am using Tab layout and no default tab is selected like it was with 1.25.0 1.26.0 1.25.0 This can't be the expected behaviour?

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## [Complete & Split: is the value wrong?](https://discourse.nodered.org/t/complete-split-is-the-value-wrong/96650)

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**Author:** [@gregorius](https://discourse.nodered.org/u/gregorius)\
**Replies:** 11\
**Last updated:** [21 April 2025 13:41 UTC](https://discourse.nodered.org/t/complete-split-is-the-value-wrong/96650 "2025-04-21T13:41:57Z")

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Hi There, and sorry to go with this complete node topic but .... \[{"id":"801126629e8ab7c2","type":"inject","z":"14ef36ad590a7fe8","name":"","props":\[{"p":"payload"},{"p":"topic","vt":"str"}\],"repeat":"","crontab":""…

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## [Complete node doesn't check for recursion](https://discourse.nodered.org/t/complete-node-doesnt-check-for-recursion/96647)

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**Author:** [@gregorius](https://discourse.nodered.org/u/gregorius)\
**Replies:** 4\
**Last updated:** [21 April 2025 12:49 UTC](https://discourse.nodered.org/t/complete-node-doesnt-check-for-recursion/96647 "2025-04-21T12:49:41Z")

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Hi There, as part of my Erlang-RED thingy, I'm creating a test suite of flows for testing the functionality of the core nodes. I've just come to the complete node and discovered that it's fairly simple to create an end…

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## [Radio button does not respond to payload of zero](https://discourse.nodered.org/t/radio-button-does-not-respond-to-payload-of-zero/96409)

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**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 3\
**Last updated:** [5 April 2025 14:14 UTC](https://discourse.nodered.org/t/radio-button-does-not-respond-to-payload-of-zero/96409 "2025-04-05T14:14:20Z")

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A radio group can have numeric options, for example If you send a msg.payload to the node, the matching option becomes selected. It does not work if msg.payload == 0 or "0" Sample flow \[{"id":"24c10c4758cc2…

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## [Node.send causing error: this.\_flow is undefined](https://discourse.nodered.org/t/node-send-causing-error-this-flow-is-undefined/96217)

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**Author:** [@papenfort](https://discourse.nodered.org/u/papenfort)\
**Replies:** 9\
**Last updated:** [24 March 2025 18:45 UTC](https://discourse.nodered.org/t/node-send-causing-error-this-flow-is-undefined/96217 "2025-03-24T18:45:32Z")

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hey there, im trying to create a custom node that may send a message via a callback. for that purpose i have assigned the this from the constructor-function to the variable "node" like in the docs. whenever i try to use…

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## [Selfconnectedness or how to connect a node to itself](https://discourse.nodered.org/t/selfconnectedness-or-how-to-connect-a-node-to-itself/95174)

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**Author:** [@gregorius](https://discourse.nodered.org/u/gregorius)\
**Replies:** 9\
**Last updated:** [6 February 2025 11:13 UTC](https://discourse.nodered.org/t/selfconnectedness-or-how-to-connect-a-node-to-itself/95174 "2025-02-06T11:13:53Z")

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Hi There, I just noticed that nodes cannot be connected to themselves - probably very sensible. However if I delete a connected node using the "maintain connections" (ctrl/cmd-delete/backspace) functionality, I can get…

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## [Bug when adding Spacer Dashboard 2](https://discourse.nodered.org/t/bug-when-adding-spacer-dashboard-2/94316)

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**Author:** [@gerrybartley](https://discourse.nodered.org/u/gerrybartley)\
**Replies:** 6\
**Last updated:** [9 January 2025 20:56 UTC](https://discourse.nodered.org/t/bug-when-adding-spacer-dashboard-2/94316 "2025-01-09T20:56:25Z")

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OS Red Hat Enterprise Linux release 9.4 (Plow) Node-Red Version 4.0.8 Dashboard Issue Can't set Group when Adding a spacer from layout Spacer doesn't appear in the group I tried to add it to Shows up as inval…

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## [Inserting a node breaks group](https://discourse.nodered.org/t/inserting-a-node-breaks-group/93135)

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**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 6\
**Last updated:** [14 November 2024 09:07 UTC](https://discourse.nodered.org/t/inserting-a-node-breaks-group/93135 "2024-11-14T09:07:46Z")

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If you have some nodes in a group and drag from one of them to create a new node also in the group, the new node becomes the only member of the group.

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## [Why is the global variable changing?](https://discourse.nodered.org/t/why-is-the-global-variable-changing/90759)

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**Author:** [@tkreks](https://discourse.nodered.org/u/tkreks)\
**Replies:** 5\
**Last updated:** [6 September 2024 20:11 UTC](https://discourse.nodered.org/t/why-is-the-global-variable-changing/90759 "2024-09-06T20:11:25Z")

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Hi! I have written a function that should compare json msg.a and msg.b . The differences are displayed in msg.c. And msg.b is updated with values from msg.a . But I take these values from global variables 1 and 2. After…

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## [Restart loop after a mistyped IP address](https://discourse.nodered.org/t/restart-loop-after-a-mistyped-ip-address/86702)

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**Author:** [@nygma2004](https://discourse.nodered.org/u/nygma2004)\
**Replies:** 5\
**Last updated:** [24 March 2024 09:19 UTC](https://discourse.nodered.org/t/restart-loop-after-a-mistyped-ip-address/86702 "2024-03-24T09:19:32Z")

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I am not sure if this is known issue or not. I am integrating Gree AC units in NR and in the device configuration I accidently mistyped the ip to 192.1680.249. Missed the dot after 168. This causes a reboot loop in Node…

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## [Retain example message in JSONata Expression editor](https://discourse.nodered.org/t/retain-example-message-in-jsonata-expression-editor/86086)

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**Author:** [@christopher-lambe](https://discourse.nodered.org/u/christopher-lambe)\
**Replies:** 6\
**Last updated:** [5 March 2024 13:16 UTC](https://discourse.nodered.org/t/retain-example-message-in-jsonata-expression-editor/86086 "2024-03-05T13:16:35Z")

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I am a huge fan of the JSONata in Node-RED, particularly in the Switch node and the Change node. It beats the hell out of writing nested loops in a function node. It can make resonably complex and powerful no code flows …

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## [Email node shows "invalid properties: token", but works](https://discourse.nodered.org/t/email-node-shows-invalid-properties-token-but-works/84401)

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**Author:** [@dennishvo](https://discourse.nodered.org/u/dennishvo)\
**Replies:** 1\
**Last updated:** [9 January 2024 04:41 UTC](https://discourse.nodered.org/t/email-node-shows-invalid-properties-token-but-works/84401 "2024-01-09T04:41:07Z")

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I'm upgrading from NR 3.0.2 to NR 3.1.3 and everything has been working well except for one odd issue with the email node (node-red-node-email v2.1.0). Here's how I have the email node configured: Name -- empty To -- …

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## ["Search flows" returns incomplete results](https://discourse.nodered.org/t/search-flows-returns-incomplete-results/82801)

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**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 4\
**Last updated:** [21 November 2023 13:36 UTC](https://discourse.nodered.org/t/search-flows-returns-incomplete-results/82801 "2023-11-21T13:36:56Z")

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I have a ui\_tab called test stuff. There is one group with two ui-charts on the tab If I search flows for "test stuff" it returns the tab but neither the group nor the widgets on it, although their config does includ…

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## [Tcp msg is reassigned to the next data before debug output](https://discourse.nodered.org/t/tcp-msg-is-reassigned-to-the-next-data-before-debug-output/81907)

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**Author:** [@fullmooooon](https://discourse.nodered.org/u/fullmooooon)\
**Replies:** 19\
**Last updated:** [12 October 2023 10:37 UTC](https://discourse.nodered.org/t/tcp-msg-is-reassigned-to-the-next-data-before-debug-output/81907 "2023-10-12T10:37:13Z")

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After my node-red connects to the tcp server, if there is a slight load in the function that gets the data. It seems that debug sometimes outputs the next set of buffer data. If I reuse msg objects. Testing function…

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## [Possible Bug: Can't edit link items](https://discourse.nodered.org/t/possible-bug-cant-edit-link-items/81519)

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**Author:** [@MyRandomThoughts](https://discourse.nodered.org/u/MyRandomThoughts)\
**Replies:** 4\
**Last updated:** [23 September 2023 18:41 UTC](https://discourse.nodered.org/t/possible-bug-cant-edit-link-items/81519 "2023-09-23T18:41:16Z")

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From the node-red console, using the Layout tab, the edit button for link items no longer works. All other edit buttons work, just not for links. I have restarted the browser and cleared cookies. Node-RED : node-r…

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## [When I restart Node-red, or refresh the browser, MQTT broker & nodes show error](https://discourse.nodered.org/t/when-i-restart-node-red-or-refresh-the-browser-mqtt-broker-nodes-show-error/79081)

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**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 12\
**Last updated:** [21 August 2023 13:43 UTC](https://discourse.nodered.org/t/when-i-restart-node-red-or-refresh-the-browser-mqtt-broker-nodes-show-error/79081 "2023-08-21T13:43:29Z")

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This has started occurring recently, possibly related to installing the beta. Node-red 3.1.0-beta3, npm 16.19.1 is running on a Raspberry Pi Zero 2. Mosquitto 1.5.7 runs on another Pi in the same network. When I resta…

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## [Editor zoomed in or out, cannot drag a node into existing wire](https://discourse.nodered.org/t/editor-zoomed-in-or-out-cannot-drag-a-node-into-existing-wire/77563)

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**Author:** [@jbudd](https://discourse.nodered.org/u/jbudd)\
**Replies:** 3\
**Last updated:** [15 April 2023 04:03 UTC](https://discourse.nodered.org/t/editor-zoomed-in-or-out-cannot-drag-a-node-into-existing-wire/77563 "2023-04-15T04:03:09Z")

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If you drag a node over a wire, the wire changes to dashes. Dropping the node inserts it into the wire. However if the editor page is zoomed in or out by 1 click (buttons at bottom right of editor), the wire never ch…

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## [Multiline labels revert to single line](https://discourse.nodered.org/t/multiline-labels-revert-to-single-line/75673)

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**Author:** [@cymplecy](https://discourse.nodered.org/u/cymplecy)\
**Replies:** 13\
**Last updated:** [25 February 2023 07:59 UTC](https://discourse.nodered.org/t/multiline-labels-revert-to-single-line/75673 "2023-02-25T07:59:37Z")

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I just noticed that nodes with multiline labels switch to single line once you've dragged them into the workspace Little bug or just something hard to prevent?