2026-09-06T11:28:00.044624Z  INFO applied GEMM plan constraint source_operation=0 matching_plans=0 constraint=GemmPlanConstraint { source_operation: 0, orientation: Normal, row_partitions: 4, column_partitions: 10, inner_partitions: 36, result_row_partitions: 36, result_column_partitions: 1, output_column_block: 432, weight_memory_class: Ipu21Interleaved, reduction_staging: Complete, local_weight_staging: Direct }
2026-09-06T11:28:00.045259Z  INFO ipu_codegen.package.build{tile_count=1472 operations=3}:ipu_codegen.package.phase{phase="lower_mid"}: package build phase finished phase="lower_mid" elapsed_ms=291 success=false
Error: mid-level lowering failed: operation OperationId(0) has no legal format candidate

Caused by:
    operation OperationId(0) has no legal format candidate