Service
Azure AI Foundry Workflows Preview
Scenario
We are using the “Ask a Question” node in workflow orchestration to pause execution and wait for user input before continuing downstream nodes.
The workflow previously behaved correctly, but recently started showing intermittent and inconsistent behavior without significant workflow changes.
Expected result
When execution reaches the “Ask a Question” node, the workflow should pause and wait for user interaction before continuing.
Actual result
We are observing two different issues related to the “Ask a Question” node.
In larger production workflows:
the workflow intermittently does not pause at the “Ask a Question” node
downstream nodes continue executing automatically without user input
external frontend integrations sometimes receive duplicated or unexpected messages
the issue is inconsistent and difficult to reproduce deterministically
In a minimal workflow containing only:
Start -> Ask a Question
we intermittently receive the following runtime error:
server_error: Unhandled workflow failure
invalid_operation_error: Cannot interpret incoming message of type ‘Microsoft.Agents.AI.Workflows.Declarative.Kit.ActionExecutorResult’ as type ‘Microsoft.Agents.AI.Workflows.Declarative.Kit.ActionExecutorResult’
Environment
Azure AI Foundry Workflows Preview
Issue reproduced in both Preview UI and external frontend integrations
Multiple clients/frontends affected
Behavior started recently without major workflow changes
Troubleshooting already attempted
Re-publishing workflows
Testing simplified workflows
Testing from different clients/frontends
The issue appears intermittent and sometimes temporarily resolves without workflow changes.
Question
Is this a known regression or runtime issue affecting “Ask a Question” orchestration behavior in Azure AI Foundry Workflows Preview?