diff --git a/comfy/cli_args.py b/comfy/cli_args.py
index b289d7a17..c2b4179f5 100644
--- a/comfy/cli_args.py
+++ b/comfy/cli_args.py
@@ -135,6 +135,8 @@ def _create_parser() -> EnhancedConfigArgParser:
     parser.add_argument("--fast", nargs="*", type=PerformanceFeature, help="Enable some untested and potentially quality deteriorating optimizations. Pass a list specific optimizations if you only want to enable specific ones. Current valid optimizations: fp16_accumulation fp8_matrix_mult cublas_ops", default=set())
 
     parser.add_argument("--mmap-torch-files", action="store_true", help="Use mmap when loading ckpt/pt files.")
+    parser.add_argument("--disable-mmap", action="store_true", help="Don't use mmap when loading safetensors.")
+
     parser.add_argument("--dont-print-server", action="store_true", help="Don't print server output.")
     parser.add_argument("--quick-test-for-ci", action="store_true", help="Quick test for CI. Raises an error if nodes cannot be imported,")
     parser.add_argument("--windows-standalone-build", default=hasattr(sys, 'frozen') and getattr(sys, 'frozen'),
diff --git a/comfy/ldm/lightricks/vae/causal_video_autoencoder.py b/comfy/ldm/lightricks/vae/causal_video_autoencoder.py
index 7d8bb4877..eedb545cd 100644
--- a/comfy/ldm/lightricks/vae/causal_video_autoencoder.py
+++ b/comfy/ldm/lightricks/vae/causal_video_autoencoder.py
@@ -971,7 +971,7 @@ class VideoVAE(nn.Module):
             norm_layer=config.get("norm_layer", "group_norm"),
             causal=config.get("causal_decoder", False),
             timestep_conditioning=self.timestep_conditioning,
-            spatial_padding_mode=config.get("spatial_padding_mode", "zeros"),
+            spatial_padding_mode=config.get("spatial_padding_mode", "reflect"),
         )
 
         self.per_channel_statistics = processor()
diff --git a/comfy/sd1_tokenizer/tokenizer_config.json b/comfy/sd1_tokenizer/tokenizer_config.json
index 5ba7bf706..8f7b3151d 100644
--- a/comfy/sd1_tokenizer/tokenizer_config.json
+++ b/comfy/sd1_tokenizer/tokenizer_config.json
@@ -18,7 +18,7 @@
     "single_word": false
   },
   "errors": "replace",
-  "model_max_length": 77,
+  "model_max_length": 8192,
   "name_or_path": "openai/clip-vit-large-patch14",
   "pad_token": "<|endoftext|>",
   "special_tokens_map_file": "./special_tokens_map.json",
diff --git a/comfy/utils.py b/comfy/utils.py
index d275e2422..f5aa13e1a 100644
--- a/comfy/utils.py
+++ b/comfy/utils.py
@@ -50,6 +50,8 @@ from .component_model.queue_types import BinaryEventTypes
 from .execution_context import current_execution_context
 
 MMAP_TORCH_FILES = args.mmap_torch_files
+DISABLE_MMAP = args.disable_mmap
+
 logger = logging.getLogger(__name__)
 
 ALWAYS_SAFE_LOAD = False
@@ -96,7 +98,10 @@ def load_torch_file(ckpt: str, safe_load=False, device=None, return_metadata=Fal
             with safetensors.safe_open(Path(ckpt).resolve(strict=True), framework="pt", device=device.type) as f:
                 sd = {}
                 for k in f.keys():
-                    sd[k] = f.get_tensor(k)
+                    tensor = f.get_tensor(k)
+                    if DISABLE_MMAP:  # TODO: Not sure if this is the best way to bypass the mmap issues
+                        tensor = tensor.to(device=device, copy=True)
+                    sd[k] = tensor
                 if return_metadata:
                     metadata = f.metadata()
         except Exception as e:
diff --git a/comfy_extras/nodes/nodes_mask.py b/comfy_extras/nodes/nodes_mask.py
index 31f03d4b3..490c49a3e 100644
--- a/comfy_extras/nodes/nodes_mask.py
+++ b/comfy_extras/nodes/nodes_mask.py
@@ -260,7 +260,7 @@ class MaskComposite:
         visible_width, visible_height = (right - left, bottom - top,)
 
         source_portion = source[:, :visible_height, :visible_width]
-        destination_portion = destination[:, top:bottom, left:right]
+        destination_portion = output[:, top:bottom, left:right]
 
         if operation == "multiply":
             output[:, top:bottom, left:right] = destination_portion * source_portion