What version of Origam are you using… We are on version 2025.5.2.3862
I’ve API Data page with workflow method. The workflow has enabled Trace on all steps.
I was expecting the trace will be filled with trace data.
Instead I’ve got an error in workflow log randomly (after 10hours and thousands of requests during that time) and the workflow stops responding.
The log shows this:
2026-01-20 12:57:42,506 [29] ERROR Origam.Workbench.Services.TracingService - System.ArgumentException: Item has already been added. Key in dictionary: 'Query' Key being added: 'Query'
at System.Collections.Hashtable.Insert(Object key, Object nvalue, Boolean add)
at Origam.Workbench.Services.TracingService.TraceStep(Guid workflowInstanceId, String stepPath, Guid stepId, String category, String subCategory, String remark, String data1, String data2, String message) in D:\a\1\s\backend\Origam.Workbench.Services\TracingService.cs:line 113
2026-01-20 12:57:42,509 [29] ERROR Origam.Workbench.Services.TracingService - System.ArgumentException: Item has already been added. Key in dictionary: 'Query' Key being added: 'Query'
at System.Collections.Hashtable.Insert(Object key, Object nvalue, Boolean add)
at Origam.Workbench.Services.TracingService.TraceStep(Guid workflowInstanceId, String stepPath, Guid stepId, String category, String subCategory, String remark, String data1, String data2, String message) in D:\a\1\s\backend\Origam.Workbench.Services\TracingService.cs:line 113
2026-01-20 12:57:42,510 [29] ERROR Origam.Workbench.Services.TracingService - System.ArgumentException: Item has already been added. Key in dictionary: 'Query' Key being added: 'Query'
at System.Collections.Hashtable.Insert(Object key, Object nvalue, Boolean add)
at Origam.Workbench.Services.TracingService.TraceRule(Guid ruleId, String ruleName, String ruleInput, String ruleResult, Guid workflowInstanceId) in D:\a\1\s\backend\Origam.Workbench.Services\TracingService.cs:line 158
2026-01-20 12:57:42,511 [29] ERROR Origam.Workbench.Services.TracingService - System.ArgumentException: Item has already been added. Key in dictionary: 'Query' Key being added: 'Query'
at System.Collections.Hashtable.Insert(Object key, Object nvalue, Boolean add)
at Origam.Workbench.Services.TracingService.TraceStep(Guid workflowInstanceId, String stepPath, Guid stepId, String category, String subCategory, String remark, String data1, String data2, String message) in D:\a\1\s\backend\Origam.Workbench.Services\TracingService.cs:line 113
2026-01-20 12:57:42,513 [18] ERROR Origam.Workbench.Services.TracingService - System.ArgumentException: Item has already been added. Key in dictionary: 'Query' Key being added: 'Query'
at System.Collections.Hashtable.Insert(Object key, Object nvalue, Boolean add)
at Origam.Workbench.Services.TracingService.TraceStep(Guid workflowInstanceId, String stepPath, Guid stepId, String category, String subCategory, String remark, String data1, String data2, String message) in D:\a\1\s\backend\Origam.Workbench.Services\TracingService.cs:line 113
2026-01-20 12:57:42,514 [18] ERROR Origam.Workbench.Services.TracingService - System.ArgumentException: Item has already been added. Key in dictionary: 'Query' Key being added: 'Query'
at System.Collections.Hashtable.Insert(Object key, Object nvalue, Boolean add)
at Origam.Workbench.Services.TracingService.TraceRule(Guid ruleId, String ruleName, String ruleInput, String ruleResult, Guid workflowInstanceId) in D:\a\1\s\backend\Origam.Workbench.Services\TracingService.cs:line 158
2026-01-20 12:57:42,515 [18] ERROR Origam.Workbench.Services.TracingService - System.ArgumentException: Item has already been added. Key in dictionary: 'Query' Key being added: 'Query'
at System.Collections.Hashtable.Insert(Object key, Object nvalue, Boolean add)
at Origam.Workbench.Services.TracingService.TraceStep(Guid workflowInstanceId, String stepPath, Guid stepId, String category, String subCategory, String remark, String data1, String data2, String message) in D:\a\1\s\backend\Origam.Workbench.Services\TracingService.cs:line 113
2026-01-20 12:57:42,522 [29] ERROR Origam.Workbench.Services.TracingService - System.ArgumentException: Item has already been added. Key in dictionary: 'Query' Key being added: 'Query'
at System.Collections.Hashtable.Insert(Object key, Object nvalue, Boolean add)
at Origam.Workbench.Services.TracingService.TraceStep(Guid workflowInstanceId, String stepPath, Guid stepId, String category, String subCategory, String remark, String data1, String data2, String message) in D:\a\1\s\backend\Origam.Workbench.Services\TracingService.cs:line 113