Index: branches/unlabeled/unlabeled-1.76.2/core/kernel/utility/unit_config_reader.php
===================================================================
diff -u -r8242 -r8339
--- branches/unlabeled/unlabeled-1.76.2/core/kernel/utility/unit_config_reader.php	(.../unit_config_reader.php)	(revision 8242)
+++ branches/unlabeled/unlabeled-1.76.2/core/kernel/utility/unit_config_reader.php	(.../unit_config_reader.php)	(revision 8339)
@@ -243,6 +243,14 @@
 		if ($this->StoreCache) {
 			$this->processDynamicClones();
 			$this->CacheParsedData();
+			
+			if ($this->Application->isDebugMode(false) && constOn('DBG_VALIDATE_CONFIGS')) {
+				// validate configs here to have changes from OnAfterConfigRead hooks to prefixes
+				foreach ($this->configData as $prefix => $config) {
+					if (!isset($config['TableName'])) continue;
+					$this->ValidateConfig($prefix);
+				}
+			}
 		}
 	}
 
@@ -394,10 +402,6 @@
 			// replacement templates defined in this config
 			$this->Application->ReplacementTemplates = array_merge_recursive2($this->Application->ReplacementTemplates, $config['ReplacementTemplates']);
 		}
-
-		if ( $this->Application->isDebugMode(false) && constOn('DBG_VALIDATE_CONFIGS') && isset($config['TableName']) ) {
-			$this->ValidateConfig($prefix);
-		}
 	}
 
 	function ValidateConfig($prefix)