diff --git a/docker/Dockerfile b/docker/Dockerfile
index b15709a..47bf95c 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -39,7 +39,7 @@ RUN apt-get update && apt-get install --no-install-recommends -y \
 
 # Install nodejs
 WORKDIR /tmp
-RUN curl -sL https://deb.nodesource.com/setup_23.x -o nodesource_setup.sh && \
+RUN curl -sL https://deb.nodesource.com/setup_24.x -o nodesource_setup.sh && \
     bash nodesource_setup.sh && \
     apt-get update && \
     apt-get install -y nodejs && \
diff --git a/extensions_built_in/sd_trainer/SDTrainer.py b/extensions_built_in/sd_trainer/SDTrainer.py
index 563616a..d525372 100644
--- a/extensions_built_in/sd_trainer/SDTrainer.py
+++ b/extensions_built_in/sd_trainer/SDTrainer.py
@@ -927,7 +927,7 @@ class SDTrainer(BaseSDTrainProcess):
                     pred = t0
                     # handle velocity equiv loss if set. This scales t0 loss to match velocity of flowmatchhing loss
                     if self.train_config.t0_velocity_equiv_weight:
-                        velocity_equiv_weight = (1.0 / torch.clamp(tv, min=0.1) ** 2)
+                        velocity_equiv_weight = (1.0 / torch.clamp(tv, min=0.01) ** 2)
                         local_loss_scale = velocity_equiv_weight
                         
                 if self.train_config.do_fft_loss:
@@ -936,7 +936,7 @@ class SDTrainer(BaseSDTrainProcess):
                     pred_mag = torch.fft.rfft2(t0.float(), norm="ortho").abs()
                     fft_loss = F.mse_loss(pred_mag, target_mag, reduction="none")
                     if self.train_config.do_fft_velocity_equiv_weight:
-                        velocity_equiv_weight = (1.0 / torch.clamp(tv, min=0.1) ** 2)
+                        velocity_equiv_weight = (1.0 / torch.clamp(tv, min=0.01) ** 2)
                         fft_loss = fft_loss * velocity_equiv_weight
                     fft_loss = fft_loss.mean()
                     self.additional_logs['loss/fft'] = fft_loss.item()
diff --git a/manager/doctor.py b/manager/doctor.py
index 554c7e2..a3f2608 100644
--- a/manager/doctor.py
+++ b/manager/doctor.py
@@ -119,7 +119,14 @@ def run_doctor():
                 _check("torch sees gpu", False, "could not query")
 
     node_exe, node_major = nodejs.have_usable_node()
-    if node_exe:
+    if node_exe and node_exe == nodejs.local_node_exe() and nodejs.local_node_stale():
+        _check(
+            "node",
+            False,
+            "%s (v%s) is behind pinned v%s (manager sync reinstalls it)"
+            % (node_exe, node_major, nodejs.NODE_VERSION),
+        )
+    elif node_exe:
         _check("node", True, "%s (v%s)" % (node_exe, node_major))
     else:
         _check(
diff --git a/manager/nodejs.py b/manager/nodejs.py
index c31f95e..be43a83 100644
--- a/manager/nodejs.py
+++ b/manager/nodejs.py
@@ -27,7 +27,7 @@ from .util import (
 
 NODE_DIR = os.path.join(REPO_ROOT, ".node")
 # Node 24 is the current LTS line.
-NODE_VERSION = "24.11.1"
+NODE_VERSION = "24.22.1"
 MIN_NODE_MAJOR = 20
 
 UI_DIR = os.path.join(REPO_ROOT, "ui")
@@ -44,7 +44,8 @@ def local_node_exe():
 
 
 def _node_info(exe):
-    """(major, arch) for a node executable, e.g. (24, 'x64'), or (None, None)."""
+    """(version, major, arch) for a node executable, e.g. ('24.22.1', 24, 'x64'),
+    or (None, None, None)."""
     try:
         out = subprocess.run(
             [exe, "-p", "process.version + ' ' + process.arch"],
@@ -53,11 +54,12 @@ def _node_info(exe):
             timeout=15,
         )
         if out.returncode != 0:
-            return None, None
-        version, arch = out.stdout.decode().strip().split()  # v24.11.1 x64
-        return int(version.lstrip("v").split(".")[0]), arch
+            return None, None, None
+        version, arch = out.stdout.decode().strip().split()  # v24.22.1 x64
+        version = version.lstrip("v")
+        return version, int(version.split(".")[0]), arch
     except (OSError, subprocess.TimeoutExpired, ValueError):
-        return None, None
+        return None, None, None
 
 
 def _usable_major(exe):
@@ -68,7 +70,7 @@ def _usable_major(exe):
     so a native ARM64 node loads the UI but dies on the first DB call. The
     x64 node runs under emulation on ARM hosts.
     """
-    major, arch = _node_info(exe)
+    _, major, arch = _node_info(exe)
     if major is None or major < MIN_NODE_MAJOR:
         return None
     if IS_WINDOWS and arch != "x64":
@@ -110,14 +112,30 @@ def have_usable_node():
     return None, None
 
 
+def local_node_stale():
+    """True when the portable copy exists but isn't the pinned NODE_VERSION."""
+    local = local_node_exe()
+    if not os.path.isfile(local):
+        return False
+    version, _, _ = _node_info(local)
+    return version != NODE_VERSION
+
+
 def ensure_node(detection, dry_run=False):
     exe, major = have_usable_node()
-    if exe:
+    if exe == local_node_exe() and local_node_stale():
+        # the portable copy is ours to keep current (security releases)
+        version, _, _ = _node_info(exe)
+        info(
+            "Portable Node.js v%s at %s is behind the pinned v%s — reinstalling."
+            % (version, NODE_DIR, NODE_VERSION)
+        )
+    elif exe:
         ok("Node.js v%d found (%s)." % (major, exe))
         return False
     system = which("node")
     if system:
-        _, arch = _node_info(system)
+        _, _, arch = _node_info(system)
         if IS_WINDOWS and arch and arch != "x64":
             info(
                 "System Node.js is %s but the UI needs an x64 node on Windows "
diff --git a/version.py b/version.py
index a331834..e7d4575 100644
--- a/version.py
+++ b/version.py
@@ -1 +1 @@
-VERSION = "0.13.35"
+VERSION = "0.13.36"