Update app.py

app.py

@@ -355,7 +355,31 @@ print("=" * 80)
 print("Downloading LTX-2.3 HQ models...")
 print("=" * 80)
 
-checkpoint_path = hf_hub_download(repo_id=LTX_MODEL_REPO, filename="ltx-2.3-22b-dev.safetensors")
+weights_dir = Path("weights")
+weights_dir.mkdir(exist_ok=True)
+
+checkpoint_path = hf_hub_download(
+    repo_id=LTX_MODEL_REPO,
+    filename="ltx-2.3-22b-dev.safetensors",
+    local_dir=str(weights_dir),
+    local_dir_use_symlinks=False,  # Ensure actual file copy, not symlink
+)
+
+# Force download if not present
+if not os.path.exists(checkpoint_path):
+    print(f"Re-downloading checkpoint to {weights_dir}...")
+    checkpoint_path = hf_hub_download(
+        repo_id=LTX_MODEL_REPO,
+        filename="ltx-2.3-22b-dev.safetensors",
+        local_dir=str(weights_dir),
+        local_dir_use_symlinks=False,
+        force_download=True,
+    )
+
+print(f"Checkpoint at: {checkpoint_path}")
+print(f"File exists: {os.path.exists(checkpoint_path)}")
+print(f"File size: {os.path.getsize(checkpoint_path) / 1024**3:.2f} GB")
+
 spatial_upsampler_path = hf_hub_download(repo_id=LTX_MODEL_REPO, filename="ltx-2.3-spatial-upscaler-x2-1.1.safetensors")
 distilled_lora_path = hf_hub_download(repo_id=LTX_MODEL_REPO, filename="ltx-2.3-22b-distilled-lora-384.safetensors")
 gemma_root = snapshot_download(repo_id=GEMMA_REPO)