Error in Agent node: 400 Item 'msg_xxxxx' of type 'message' was provided without its required 'reasoning' item: 'rs_xxxx' #6108
Description
Describe the bug
Hi everyone. I'm having this problem when using GTP 5.4 with reasoning enabled and trying to use a tool.
Has anyone else experienced this?
To Reproduce
Create a V2.0 agent
Use gpt-5.4
Enable reasoning
Reasoning Effort - low
Reasoning Summary - auto
Assign a custom tool
Expected behavior
The agent responds without error.
Screenshots
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Flow
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Use Method
None
Flowise Version
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Operating System
None
Browser
None
Additional context
No response