diff --git a/studio/backend/core/training/worker.py b/studio/backend/core/training/worker.py
index fb5e9b5137..427687451c 100644
--- a/studio/backend/core/training/worker.py
+++ b/studio/backend/core/training/worker.py
@@ -1389,6 +1389,12 @@ def _run_mlx_training(event_queue, stop_queue, config):
     # Force text-only for non-image datasets even on vision-capable models
     # (e.g. Qwen3.5-VL trained on plain alpaca text).
     _send("status", status_message = f"Loading {model_name}...")
+    # Pull through resume_from_checkpoint so MLXTrainer.train() can restore
+    # optimizer + step state and continue cleanly. Was previously dropped on
+    # the floor for the MLX path, so the Resume UI button silently restarted
+    # from step 0 (the CUDA path at lines 2729 / 3108 has been forwarding
+    # this all along).
+    resume_from_checkpoint = config.get("resume_from_checkpoint") or None
     is_dataset_image = bool(config.get("is_dataset_image", False))
     training_type = config.get("training_type", "LoRA/QLoRA")
     use_lora = training_type == "LoRA/QLoRA"
@@ -1852,7 +1858,7 @@ def _run_mlx_training(event_queue, stop_queue, config):
     # ── 11. Run training ──
     gc.collect()
     mx.synchronize()
-    trainer.train()
+    trainer.train(resume_from_checkpoint=resume_from_checkpoint)
 
     # ── 12. Save and finalize ──
     if trainer.stop_requested and not _stop_save[0]: