diff --git a/src/dexorder/runner.py b/src/dexorder/runner.py
index df5dd3b..287caba 100644
--- a/src/dexorder/runner.py
+++ b/src/dexorder/runner.py
@@ -4,7 +4,6 @@ from asyncio import Queue
 from datetime import datetime
 from typing import Callable, Union, Any, Iterable
 
-from sqlalchemy.sql.functions import current_timestamp
 from web3.contract.contract import ContractEvents
 from web3.exceptions import LogTopicError, MismatchedABI
 # noinspection PyPackageRequirements
@@ -118,6 +117,7 @@ class BlockStateRunner:
                             await self.queue.put(head["hash"])
                             if not self.running:
                                 break
+                            await async_yield()
             except (ConnectionClosedError, TimeoutError):
                 pass
             finally:
@@ -127,7 +127,7 @@ class BlockStateRunner:
                     await w3ws.provider.disconnect()
                 except Exception:
                     pass
-            await async_yield()
+            log.debug('yield')
         log.debug('runner run_ws() exiting')
 
 
@@ -183,15 +183,17 @@ class BlockStateRunner:
         while self.running:
             try:
                 async with asyncio.timeout(1): # check running flag every second
-                    start = datetime.now()
                     head = await self.queue.get()
             except TimeoutError:
+                log.debug('timeout in runner')
                 # 1 second has passed without a new head. Run the postprocess callbacks to check for activated time-based triggers
                 if prev_head is not None:
                     await self.handle_time_tick(head)
             else:
                 try:
+                    log.debug('handle head...')
                     await self.handle_head(chain, head, w3)
+                    log.debug('handled')
                     prev_head = head
                 except Exception as x:
                     log.exception(x)