diff --git a/src/dexorder/bin/mirror.py b/src/dexorder/bin/mirror.py
index 31c3ca9..83ec09a 100644
--- a/src/dexorder/bin/mirror.py
+++ b/src/dexorder/bin/mirror.py
@@ -82,6 +82,8 @@ async def write_metadata( pools, mirror_pools ):
     tokens = set(p['base'] for p in pool_dicts)
     tokens.update(p['quote'] for p in pool_dicts)
     tokens = await asyncio.gather(*[get_token(t) for t in tokens])
+    for token in tokens:
+        token['x'] = {'mock':True}
     with open(filename, 'w') as f:
         generate_metadata(tokens, pool_dicts, f)
     log.info(f'wrote {filename}')
diff --git a/src/dexorder/database/__init__.py b/src/dexorder/database/__init__.py
index 570296f..1aff459 100644
--- a/src/dexorder/database/__init__.py
+++ b/src/dexorder/database/__init__.py
@@ -74,7 +74,7 @@ class Db:
             engine = _engine.get()
             if engine is None:
                 raise RuntimeError('Cannot create session: no database engine set. Use dexorder.db.connect() first')
-            s = Session(engine, expire_on_commit=False)
+            s = Session(engine, expire_on_commit=False, autoflush=False, autocommit=False)
             _session.set(s)
         return s
 
diff --git a/src/dexorder/event_handler.py b/src/dexorder/event_handler.py
index 3175aab..bc0eacd 100644
--- a/src/dexorder/event_handler.py
+++ b/src/dexorder/event_handler.py
@@ -61,11 +61,13 @@ async def handle_order_placed(event: EventData):
             return
     vault = VaultContract(addr)
     for index in range(start_index, start_index+num_orders):
-        obj = await vault.swapOrderStatus(index)
-        log.debug(f'raw order status {obj}')
-        order = Order.create(vault.address, index, obj)
-        await activate_order(order)
-        log.debug(f'new order {order} {order.order}')
+        key = OrderKey(vault.address, index)
+        if key not in Order.instances:
+            obj = await vault.swapOrderStatus(index)
+            log.debug(f'raw order status {obj}')
+            order = Order.create(vault.address, index, obj)
+            await activate_order(order)
+            log.debug(f'new order {order} {order.order}')
 
 
 def handle_swap_filled(event: EventData):
@@ -231,9 +233,13 @@ def process_active_tranches():
 
 
 def has_funds(tk: TrancheKey):
+    log.debug(f'has funds? {tk.vault}')
     order = Order.of(tk)
     minimum = order.status.order.minFillAmount if order.amount_is_input else 0
-    return vault_balances.get(tk.vault,{}).get(order.status.order.tokenIn, 0) > minimum
+    balances = vault_balances.get(tk.vault, {})
+    token_balance = balances.get(order.status.order.tokenIn, 0)
+    log.debug(f'minimum {minimum} balances {balances}')
+    return token_balance > minimum
 
 
 async def process_execution_requests():
diff --git a/src/dexorder/metadata.py b/src/dexorder/metadata.py
index 51dcd7f..e448234 100644
--- a/src/dexorder/metadata.py
+++ b/src/dexorder/metadata.py
@@ -60,14 +60,20 @@ def dump_tokens(out, tokens):
             n = token.name,
             s = token.symbol,
             d = token.decimals,
+            x = None
         else:
             token: TokenDict
             a = token['address']
             n = token['name']
             s = token['symbol']
             d = token['decimals']
+            # noinspection PyTypedDict
+            x = None if 'x' not in token else token['x']
         token_map[a] = token
-        json_dump(out, a=a, n=n, s=s, d=d)
+        data = dict(a=a, n=n, s=s, d=d)
+        if x is not None:
+            data['x'] = x
+        json_dump(out, **data)
 
 
 def dump_pools(out, pools):
@@ -98,7 +104,7 @@ def dump_pools(out, pools):
         data = dict(a=a, b=b, q=q, f=f, e=e, d=d)
         if x is not None:
             data['x'] = x
-        json_dump(out,**data)
+        json_dump(out, **data)
 
 
 generating_metadata = False
diff --git a/src/dexorder/order/orderstate.py b/src/dexorder/order/orderstate.py
index 77702cb..20b7cbd 100644
--- a/src/dexorder/order/orderstate.py
+++ b/src/dexorder/order/orderstate.py
@@ -76,8 +76,10 @@ class Order:
     @staticmethod
     def create(vault: str, order_index: int, obj):
         """ use when a brand new order is detected by the system """
-        status = SwapOrderStatus.load_from_chain(obj)
         key = OrderKey(vault, order_index)
+        if key in Order.instances:
+            raise ValueError
+        status = SwapOrderStatus.load_from_chain(obj)
         Order.order_statuses[key] = status.copy() # always copy the struct when setting. values in BlockData must be immutable
         order = Order(key)
         if order.is_open: