Synchronized button doesn't work correctly

When I have VDB and I change something in any model, VDB editor shows that the model is not synchronized. I click on the "Synchronize All" and model looks synchronized. When I close VDB editor and open it again, the model is synchronized. It works but when I change something in the model again and I do previous steps (open VDB editor,synchronize,close VDBeditor and open it again), the model is still not synchronized.
I noticed that only first time it works properly. So when I change something after that I had already synchronized the vdb, I have to delete VDB and create new because any new changes aren't saved. This is very annoying when I have set some properties and overriding translator in the vdb and I have to set it again.
I attach the video