diff --git a/adv_control/sampling.py b/adv_control/sampling.py
index 7252160..7f2e9ec 100644
--- a/adv_control/sampling.py
+++ b/adv_control/sampling.py
@@ -20,12 +20,13 @@ from .control_reference import (ReferenceAdvanced, ReferenceInjections,
 from .dinklink import get_dinklink
 from .utils import torch_dfs, WrapperConsts
 
+CURRENT_WRAPPER_VERSION = 10001
 
 def prepare_dinklink_acn_wrapper():
     # expose acn_sampler_sample_wrapper
     d = get_dinklink()
     link_acn = d.setdefault(WrapperConsts.ACN, {})
-    link_acn[WrapperConsts.VERSION] = 10000
+    link_acn[WrapperConsts.VERSION] = CURRENT_WRAPPER_VERSION
     link_acn[WrapperConsts.ACN_CREATE_SAMPLER_SAMPLE_WRAPPER] = (comfy.patcher_extension.WrappersMP.OUTER_SAMPLE,
                                                                  WrapperConsts.ACN_OUTER_SAMPLE_WRAPPER_KEY,
                                                                  acn_outer_sample_wrapper)
diff --git a/adv_control/utils.py b/adv_control/utils.py
index 3b55ff4..bd9629e 100644
--- a/adv_control/utils.py
+++ b/adv_control/utils.py
@@ -244,6 +244,11 @@ class TimestepKeyframe:
     def has_mask_hint(self):
         return self.mask_hint_orig is not None
     
+    def get_effective_guarantee_steps(self, max_sigma: torch.Tensor):
+        '''If keyframe starts before current sampling range (max_sigma), treat as 0.'''
+        if self.start_t > max_sigma:
+            return 0
+        return self.guarantee_steps
     
     @staticmethod
     def default() -> 'TimestepKeyframe':
@@ -549,7 +554,7 @@ class AdvancedControlBase:
         self.weights = None
         self.latent_keyframes = None
 
-    def prepare_current_timestep(self, t: Tensor, batched_number: int=1):
+    def prepare_current_timestep(self, t: Tensor, transformer_options: dict[str, torch.Tensor]):
         self.t = float(t[0])
         # check if t has changed (otherwise do nothing, as step already accounted for)
         if self.t == self.prev_t:
@@ -557,8 +562,9 @@ class AdvancedControlBase:
         # get current step percent
         curr_t: float = self.t
         prev_index = self._current_timestep_index
+        max_sigma = torch.max(transformer_options.get("sigmas", BIGMAX))
         # if met guaranteed steps (or no current keyframe), look for next keyframe in case need to switch
-        if self._current_timestep_keyframe is None or self._current_used_steps >= self._current_timestep_keyframe.guarantee_steps:
+        if self._current_timestep_keyframe is None or self._current_used_steps >= self._current_timestep_keyframe.get_effective_guarantee_steps(max_sigma):
             # if has next index, loop through and see if need to switch
             if self.timestep_keyframes.has_index(self._current_timestep_index+1):
                 for i in range(self._current_timestep_index+1, len(self.timestep_keyframes)):
@@ -584,7 +590,7 @@ class AdvancedControlBase:
                             del self.tk_mask_cond_hint_original
                             self.tk_mask_cond_hint_original = None
                         # if guarantee_steps greater than zero, stop searching for other keyframes
-                        if self._current_timestep_keyframe.guarantee_steps > 0:
+                        if self._current_timestep_keyframe.get_effective_guarantee_steps(max_sigma) > 0:
                             break
                     # if eval_tk is outside of percent range, stop looking further
                     else:
@@ -673,7 +679,7 @@ class AdvancedControlBase:
         self.batch_size = len(t)
         self.cond_or_uncond = transformer_options.get("cond_or_uncond", None)
         # prepare timestep and everything related
-        self.prepare_current_timestep(t=t, batched_number=batched_number)
+        self.prepare_current_timestep(t=t, transformer_options=transformer_options)
         # if should not perform any actions for the controlnet, exit without doing any work
         if self.strength == 0.0 or self._current_timestep_keyframe.strength == 0.0:
             return self.default_control_actions(x_noisy, t, cond, batched_number, transformer_options)
diff --git a/pyproject.toml b/pyproject.toml
index e166b84..0477348 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [project]
 name = "comfyui-advanced-controlnet"
 description = "Nodes for scheduling ControlNet strength across timesteps and batched latents, as well as applying custom weights and attention masks."
-version = "1.4.2"
+version = "1.5.0"
 license = { file = "LICENSE" }
 dependencies = []