BauSystem_Main/src/de/steamwar/bausystem/features/tracer/TraceRecorder.java

@@ -255,6 +255,5 @@ public class TraceRecorder implements Listener {
 
         activeTraces.get(region).addRecord(record((TNTPrimed) event.getEntity(), activeTraces.get(region), event.blockList()));
         tntSpawnRegion.remove((TNTPrimed) event.getEntity());
-        historyMap.remove((TNTPrimed) event.getEntity());
     }
 }