While using SimStudio, the UI crashes with Minified React error #31 when rendering workflow or node outputs.
This happens when a node (especially LLM or tool-based nodes) returns a structured object (for example, an object with keys like { text, type }). The UI appears to try rendering this object directly in JSX instead of rendering a string value (such as output.text) or iterating over the content.
As a result, after the workflow state is received (via Socket.IO), the UI throws the error:
“Objects are not valid as a React child (found: object with keys {text, type})”
This seems to be a UI rendering issue rather than a workflow execution problem. Handling structured outputs safely (e.g., extracting text or mapping arrays) would prevent the crash.