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Bug: Spark engine fails to run Transform‑V2 pipelines with multiple input tables

Bug: Spark engine fails to run Transform‑V2 pipelines with multiple input tables: a task in LegoFlow-SWE (Harbor dataset). Problem description When a SeaTunnel job is configured with Transform‑V2 and multiple input tables/streams, the Spark engine is unable to execute the pipeline – the job…

The task

**Problem description** When a SeaTunnel job is configured with Transform‑V2 and multiple input tables/streams, the Spark engine is unable to execute the pipeline – the job terminates with a non‑zero exit status. The identical configuration succeeds on the Flink and Zeta engines, indicating that the Spark‑side…

Part of Lego-X/LegoFlow-SWE.