Update app.py

app.py

@@ -18,7 +18,10 @@ LTX_COMMIT = "ae855f8538843825f9015a419cf4ba5edaf5eec2"  # known working commit
 if not os.path.exists(LTX_REPO_DIR):
     print(f"Cloning {LTX_REPO_URL}...")
     subprocess.run(["git", "clone", LTX_REPO_URL, LTX_REPO_DIR], check=True)
-    subprocess.run(["git", "checkout", LTX_COMMIT], cwd=LTX_REPO_DIR, check=True)
+
+print(f"Checking out pinned commit {LTX_COMMIT}...")
+subprocess.run(["git", "fetch", "--all", "--tags"], cwd=LTX_REPO_DIR, check=True)
+subprocess.run(["git", "checkout", LTX_COMMIT], cwd=LTX_REPO_DIR, check=True)
 
 print("Installing ltx-core and ltx-pipelines from cloned repo...")
 subprocess.run(
@@ -339,7 +342,7 @@ print(f"Gemma root: {gemma_root}")
 
 # Initialize pipeline WITH text encoder and optional audio support
 # ---- Replace block (pipeline init) lines 275-281 ----
-pipeline = LTX23DistilledA2VPipeline(
+pipeline = LTX23NegativePromptTwoStagePipeline(
     distilled_checkpoint_path=checkpoint_path,
     spatial_upsampler_path=spatial_upsampler_path,
     gemma_root=gemma_root,
@@ -658,7 +661,7 @@ def generate_video(
 
         log_memory("before pipeline call")
 
-        apply_prepared_lora_state_to_pipeline()
+        apply_prepared_lora_config_to_pipeline()
 
         video, audio = pipeline(
             prompt=prompt,