Agent Builder ignoring/destroying error handling logic

API Bugs
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1

I’m running into a really nasty bug. I’m building a workflow in Agent Builder with ‘continue on error’ on a few of the agent nodes. But the workflow is completely ignoring the error handling and treating the outgoing edge as if it’s a success. When you reload the GUI, you can see that there’s two edges and that ‘Continue on error’ is disabled for that agent node, so it just runs both logic branches. I tried this on a minimal, brand-new workflow as well, does the same thing.

This is a huge problem for obvious reasons. Has anyone else run into this or have a fix?

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Agent Builder Continue on Error Remains Unusable
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Seeing the same behavior.

Simple repro (multiple comments because I can apparently only attach one image because I am a new user)

  1. Create simple workflow, use “Continue on error feature”:

CleanShot 2025-12-04 at 15.33.52
CleanShot 2025-12-04 at 15.33.521501×788 88 KB

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  1. Publish the workflow
  2. UI looks correct after publish. Shows new version on top left, still shows error handling.
  3. Refresh browser window or leave and return to this workflow. Confirm same version (v5), but now the node that previously had “Continue on error” true now has it set to false, and the node previously connected to error case is now orphaned:

CleanShot 2025-12-04 at 15.36.09
CleanShot 2025-12-04 at 15.36.091506×791 83.7 KB

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4

I can confirm this is a bug and will raise it with the team.
Thanks for the repro steps, @grahamplace!

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5

Just checking in here, any ETA on a resolution @vb ?

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As a follow up for anyone following along, I just reproduced this again, bug is still present. cc @vb

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