Could you clarify the structure (a sample project would be great) that you mentioned when you say that you sharing the project?? In the same component with something like this??
I found out that is something happening with the StateTrackingManager, the configuration that you shared, and React. I create a ticket to investigate it because it's not something trivial. https://github.com/bryntum/support/issues/4869
Could you also confirm that you are aware with the issue with using useRef with React 18 in strict mode?
You can try it by updating my example to React 18 with strict mode: