This week I noticed that some threads are no longer being displayed by langgraph studio, showing ‘TypeError: Failed to fetch’. However, I am able to view the errors that occurred from the thread trace.
Edit: I noticed that the threads experiencing this issue contain an interrupt. I also tried to replicate the error shown by the platform with the backend hosted on my machine, and it returns 500 in the response " POST /threads/611b081b-3eaf-4ef9-a0a9-75436221fb79/history 500 24ms [langgraph_api.server] latency_ms=24 method=POST path=/threads/611b081b-3eaf-4ef9-a0a9-75436221fb79/history path_params={‘thread_id’: ‘611b081b-3eaf-4ef9-a0a9-75436221fb79’} proto=1.1 query_string= req_header={} res_header={} route=/threads/{thread_id}/history status=500 (http_logger.py:93)