diff --git a/src/dexorder/order/triggers.py b/src/dexorder/order/triggers.py
index 589c9c5..7769e5e 100644
--- a/src/dexorder/order/triggers.py
+++ b/src/dexorder/order/triggers.py
@@ -104,8 +104,8 @@ async def update_balance_triggers(vault: str, token: str, balance: int):
 async def update_price_triggers(pool: OldPoolDict, price: dec):
     price = price * dec(10) ** dec(-pool['decimals'])  # adjust for pool decimals to get onchain price
     price = float(price)  # since we use SIMD operations to evaluate lines, we must convert to float
-    updates = [pt.update(price) for pt in PriceLineTrigger.by_pool.get(pool['address'], [])]
-    await asyncio.gather(*updates)
+    for pt in PriceLineTrigger.by_pool.get(pool['address'], []):
+        pt.update(price)
 
 
 inflight_execution_requests: set[TrancheKey] = set()
@@ -162,10 +162,11 @@ class Trigger:
     def value(self, value):
         if value != self.value:
             _dirty.add(self.tk)
+            old = _trigger_state.get(self.tk,0)
             if not value: # this conditional is inverted
-                _trigger_state[self.tk] |= 1 << self.position # set
+                _trigger_state[self.tk] = old | (1 << self.position) # set
             else:
-                _trigger_state[self.tk] &= ~(1 << self.position) # clear
+                _trigger_state[self.tk] = old & ~(1 << self.position) # clear
 
     @abstractmethod
     def remove(self): ...
@@ -350,7 +351,10 @@ class PriceLineTrigger (Trigger):
             self.value = value
 
     def remove(self):
-        PriceLineTrigger.by_pool[self.pool_address].remove(self)
+        try:
+            PriceLineTrigger.by_pool[self.pool_address].remove(self)
+        except KeyError:
+            pass
 
 
 async def activate_orders():