make sure to remove last run that creates the following simulation runs gets...

make sure to remove last run that creates the following simulation runs gets removed from the list of unfinished simulation runs

VectoCore/VectoCore/Models/Simulation/Impl/JobContainer.cs

@@ -357,8 +357,10 @@ namespace TUGraz.VectoCore.Models.Simulation.Impl
 			_runContainerMap.TryGetValue(runContainerId, out var runContainer);
 			
 			runContainer?.JobCompleted(runId);
+			try {
+				// may throw an exception in case not all simulation runs are finished successfully
 				AddFollowUpSimulatorFactories(runContainerId);
-
+			} finally {
 				try {
 					_runsRwLock.EnterWriteLock();
 					//_unfinishedRuns.Remove(runId);
@@ -374,6 +376,7 @@ namespace TUGraz.VectoCore.Models.Simulation.Impl
 					_runsRwLock.ExitWriteLock();
 				}
 			}
+		}
 
 		private void AddFollowUpSimulatorFactories(int runContainerId)
 		{
@@ -384,7 +387,6 @@ namespace TUGraz.VectoCore.Models.Simulation.Impl
 					return;
 				}
 
-
 				AddRuns(additionalSimulatorFactory);
 				Execute(_multithreaded);
 			} catch (Exception ex) {