diff --git a/pybtc/connector.py b/pybtc/connector.py
index 21a06ce..75ea04d 100644
--- a/pybtc/connector.py
+++ b/pybtc/connector.py
@@ -387,6 +387,7 @@ class Connector:
                     self.log.info("Blocks decode time %s;" % self.blocks_decode_time)
                     self.log.info("Blocks non cached %s;" % self.non_cached_blocks)
                     self.log.warning("Blocks  cache %s;" % self.block_preload.len())
+                    self.log.warning("Blocks cache last %s;" % self.block_preload.get_last_key())
 
             # after block added handler
             if self.after_block_handler and not self.cache_loading:
@@ -665,6 +666,7 @@ class Connector:
 
                     if self.block_preload.len() < 50000:
                         continue
+                    self.log.critical(str((processed_height, self.last_block_height)))
                     for i in range(processed_height, self.last_block_height):
                         self.block_preload.remove(i)
                     processed_height = self.last_block_height