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app.py

@@ -24,10 +24,15 @@ def load_processor(mid):
     # which AutoImageProcessor needs. Materialize one from the nested dict.
     local = snapshot_download(mid, allow_patterns=["*.json", "*.jinja", "*.txt"])
     pre = os.path.join(local, "preprocessor_config.json")
-    if not os.path.exists(pre):
-        cfg = json.load(open(os.path.join(local, "processor_config.json")))
-        with open(pre, "w") as f:
-            json.dump(cfg.get("image_processor", {}), f)
+    cfg = json.load(open(os.path.join(local, "processor_config.json")))
+    img = dict(cfg.get("image_processor", {}))
+    # Drop image_processor_type: lfm2_vl ships only a *Fast* processor, so the
+    # exact "Lfm2VlImageProcessor" name won't resolve. Without it, AutoImageProcessor
+    # falls back to the lfm2_vl model_type mapping (which picks the Fast class)
+    # while still reading every param from this file. (Overwrite each boot.)
+    img.pop("image_processor_type", None)
+    with open(pre, "w") as f:
+        json.dump(img, f)
     return AutoProcessor.from_pretrained(local, trust_remote_code=True)