Recurring event - issue

Hi everyone,

I recently encountered a strange issue with a recurring workflow and I’m trying to understand what might have caused it.

I have a daily recurring event that runs a search and sends an email with the count of search results. Starting March 5, I began receiving the email twice, even though:

  • there is only one workflow with a Send email action

  • the recurrence itself was scheduled only once

  • in the interface I could see only one running recurrence

  • and in the server logs, the workflow shows as triggered only once

What was interesting is that the two emails had different counts, because the search results had changed between the two sends.

Some additional context:

  • Inside this recurring workflow I modified the search logic shortly before the issue started.

  • The search returns unique elements per user, so duplicates shouldn’t normally happen.

  • There was no sign of the recurrence running twice in the scheduler and server logs.

To fix the issue, I cancelled the active recurrence and started it again, and since then everything works correctly (only one email per day).

My question is:

Has anyone experienced a situation where a recurrence seems to “remember” previous versions of a workflow or search logic and triggers twice, even though only one recurrence is visible and server logs show a single run?

I’m asking because we have many recurring workflows across several apps, and we want to avoid situations where making small changes inside a workflow could potentially cause duplicate executions.

Any insights would be appreciated :folded_hands:

I already reported this to support but they can’t help me - like they said “Source: Scheduled recurring events may snowball in rare situations”