Workflow Stops unexpectedly

Questions
1

Workflows stops unexpectedly. They were working few days ago without problem. Now They just stop after sometime.
But when I check the execute,on , it looks like it stopped after processing one item or in a minute. But I know that is not true, because I was watching every one of them , and they were working for different period of times, .Some 10m, some 20-30 minutes.
There are no error showing up.
When I check execution log it says error, but no detail.:

When I check all my nodes there are no error indications.
When I check item counts every step, and find where it stopped, its always different node. Sometimes, wait node, sometimes, googlesheets node, so its unlikely to wait node to give error, there must be something wrong.

Where does that happen, while running on my browser, or running on cloud at scheduled.

Answer : Both.

Version ?
I was using .99.* I guess. Updated to latest stable yesterday (18 July 2025) hoping that this upgrade can fix .
Same problems exist

What is the error message (if any)?

No error message at any one of them.

What is common among these workflows : Loop node.

For example:

I ran this one , an hour ago, for 10 minutes. as you can see it says it ran few seconds:

I tried lowering volume of input , but didn’t help . It sometimes work, sometimes does not

And my workspace gets offline too often, when refreshed I see 503 page for few minutes.

2

Hello @Trkrkrl,

Idk how your workflow complex is but here some ideas to detect the problem:

  • Split large workflows into smaller sub‑workflows: use Split and subworkflow to process items in chunks and reduce memory load
  • Use Continue On Fail, add catch branches, and/or create a dedicated error workflow to capture more hidden failures
    Here is a thread dedicated to this: Workflow stops mid-loop with “error” but no message — only processes 30/400 items
  • Increase RAM or switch from SQLite to Postgres to improve stability, especially under queue mode

Let me know if one of these solve your problem

3

Hi,
Workflows run on n8n cloud, so I cannot increase RAM.
It was working few days ago. I have been running these workflows for 4-5 weeks. It started giving these errors 4-5 days ago.
I am not using a database.
Instead using google sheets , because its the only one works for my needs.
I read the thread, he/she is facing similar problem but nothing worked for him.
Also , I thought moving from cloud to local PC to run n8n on docker. But its a lot of trouble, and I guess stater package does not allow that.

Thanks anyway

4

How many executions have you done in 4 weeks?
I would not like you to have exhausted the possible monthly executions and therefore the workflow was interrupted