Invalid registry object on workbench shutdown

I use eclipse rcp 4.33 (https://download.eclipse.org/eclipse/updates/4.33/). When i close the program i get the following error:

org.eclipse.core.runtime.InvalidRegistryObjectException: Invalid registry object
at org.eclipse.core.internal.registry.RegistryObjectManager.basicGetObject(RegistryObjectManager.java:293)
at org.eclipse.core.internal.registry.RegistryObjectManager.getObject(RegistryObjectManager.java:283)
at org.eclipse.core.internal.registry.ConfigurationElementHandle.getConfigurationElement(ConfigurationElementHandle.java:29)
at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:65)
at org.eclipse.ui.internal.commands.CommandStateProxy.loadState(CommandStateProxy.java:177)
at org.eclipse.ui.internal.commands.CommandStateProxy.loadState(CommandStateProxy.java:161)
at org.eclipse.ui.internal.commands.CommandStateProxy.shouldPersist(CommandStateProxy.java:255)
at org.eclipse.ui.internal.commands.CommandService.dispose(CommandService.java:142)
at org.eclipse.ui.internal.services.ServiceLocator$3.run(ServiceLocator.java:180)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:47)
at org.eclipse.ui.internal.services.ServiceLocator.disposeServices(ServiceLocator.java:177)
at org.eclipse.ui.internal.services.ServiceLocator.dispose(ServiceLocator.java:150)
at org.eclipse.ui.internal.Workbench.shutdown(Workbench.java:3040)
at org.eclipse.ui.internal.Workbench.busyClose(Workbench.java:1141)
at org.eclipse.ui.internal.Workbench.lambda$4(Workbench.java:1414)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
at org.eclipse.ui.internal.Workbench.close(Workbench.java:1414)
at org.eclipse.ui.internal.Workbench.close(Workbench.java:1385)
at org.eclipse.ui.internal.WorkbenchWindow.busyClose(WorkbenchWindow.java:1720)
at org.eclipse.ui.internal.WorkbenchWindow.lambda$5(WorkbenchWindow.java:1747)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)

It looks like the error doesn't apear with all Eclipse RCP. But I haven't figured out why this happens in my application yet.

For me it seems there is something wrong with the order of dispose of shutdown. Maybe the registry object is disposed too fast.