JIRA datacenter - cannot find and set user related fields by name, userid or email

Describe the problem/error/question

Using n8n v.195.3 self hosted.
All JIRA nodes and JIRA tools cannot set a user. We are using JIRA Datacenter edition( not cloud) and the users have emails, userIDs, names. When I try to set a name for lets say “Assignee” filed using “By ID” method, the node of JIRA return error that it cannot find the user:

Bad request - please check your parameters

400 - {“errorMessages”:,“errors”:{“assignee”:“User ‘35316’ does not exist.”}}

I tried also assigning by email, by the names of the user - same issue.

But here is more. if i try to manually select a user using “From list” method - I got only about 100 users (we have over 4000). Some kind of default limit. If I select an user from this list I got different error:

400 - {“errorMessages”:,“errors”:{“assignee”:“User ‘name.surname’ cannot be assigned issues.”}}
Yes, here it is kind of access related issue probably, but maybe the node does not see all the users thus I cannot set any user as assgnee.

Please help! This is very annoying and stops many automations we want to build.

What is the error message (if any)?

400 - {“errorMessages”:,“errors”:{“assignee”:“User ‘35316’ does not exist.”}}

Please share your workflow

{
“nodes”: [
{
“parameters”: {},
“type”: “n8n-nodes-base.manualTrigger”,
“typeVersion”: 1,
“position”: [
-820,
-320
],
“id”: “590dddf8-d1de-465b-b0a5-d4e18273e4e3”,
“name”: “When clicking ‘Execute workflow’”
},
{
“parameters”: {
“url”: “https://jira.xxxxx.yyy/rest/scriptrunner/latest/custom/getUsers”,
“authentication”: “predefinedCredentialType”,
“nodeCredentialType”: “jiraSoftwareServerPatApi”,
“options”: {}
},
“type”: “n8n-nodes-base.httpRequest”,
“typeVersion”: 4.2,
“position”: [
-600,
-320
],
“id”: “8d8bce24-635e-4f20-b7b4-a645a1816a64”,
“name”: “Get JIRA users”,
“credentials”: {
“jiraSoftwareServerPatApi”: {
“id”: “IdfVOQOqG1FitdMx”,
“name”: “Jira SW Cloud account”
}
}
},
{
“parameters”: {
“jiraVersion”: “serverPat”,
“operation”: “update”,
“issueKey”: “CHANITTEST-18”,
“updateFields”: {
“assignee”: {
“__rl”: true,
“value”: “name.surname”,
“mode”: “list”,
“cachedResultName”: “Name Surname”
}
}
},
“type”: “n8n-nodes-base.jira”,
“typeVersion”: 1,
“position”: [
-380,
-320
],
“id”: “22df0ea1-7636-4212-aec7-f0bd294ae24d”,
“name”: “Jira Software”,
“credentials”: {
“jiraSoftwareServerPatApi”: {
“id”: “IdfVOQOqG1FitdMi”,
“name”: “Jira SW Cloud account”
}
}
}
],
“connections”: {
“When clicking ‘Execute workflow’”: {
“main”: [
[
{
“node”: “Get JIRA users”,
“type”: “main”,
“index”: 0
}
]
]
},
“Get JIRA users”: {
“main”: [
[
{
“node”: “Jira Software”,
“type”: “main”,
“index”: 0
}
]
]
}
},
“pinData”: {},
“meta”: {
“templateCredsSetupCompleted”: true,
“instanceId”: “”
}
}

(Select the nodes on your canvas and use the keyboard shortcuts CMD+C/CTRL+C and CMD+V/CTRL+V to copy and paste the workflow.)

Share the output returned by the last node

Information on your n8n setup

  • n8n version: 1.95.3
  • Database (default: SQLite): PostreSQL
  • **n8n EXECUTIONS_PROCESS setting (default: own, main):**default
  • Running n8n via (Docker, npm, n8n cloud, desktop app): Docker
  • Operating system: Ubuntu 24.02 LTS