Value error, When using tool_choice, tools must be set.

[MiyazonoKaori]

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Dify version

0.15.0

Cloud or Self Hosted

Self Hosted (Docker)

Steps to reproduce

Agent cannot call tools. Except for the first conversation, it seems that the tools parameter was not included in the subsequent conversations. Model error: Value error, When using tool_choice, tools must be set.

✔️ Expected Behavior

No response

❌ Actual Behavior

No response