errors nextjs

[UXDart]

Hello. I'm having a lot of errors. found the errors to happen when calling to useSyncedStore() in different components at the same screen, same store. this is on last React and NextJS

Unhandled Runtime Error TypeError: Cannot read properties of null (reading 'removeObservers')

Call Stack eval node_modules/@reactivedata/react/dist/reactive-react-bindings.module.js (35:0) safelyCallDestroy node_modules/next/dist/compiled/react-dom/cjs/react-dom.development.js (19741:0) commitHookEffectListUnmount node_modules/next/dist/compiled/react-dom/cjs/react-dom.development.js (19923:0) commitHookPassiveUnmountEffects node_modules/next/dist/compiled/react-dom/cjs/react-dom.development.js (22550:0) commitPassiveUnmountInsideDeletedTreeOnFiber node_modules/next/dist/compiled/react-dom/cjs/react-dom.development.js (22750:0) commitPassiveUnmountEffectsInsideOfDeletedTree_begin node_modules/next/dist/compiled/react-dom/cjs/react-dom.development.js (22706:0) recursivelyTraversePassiveUnmountEffects node_modules/next/dist/compiled/react-dom/cjs/react-dom.development.js (22568:0) commitPassiveUnmountOnFiber node_modules/next/dist/compiled/react-dom/cjs/react-dom.development.js (22629:0) recursivelyTraversePassiveUnmountEffects node_modules/next/dist/compiled/react-dom/cjs/react-dom.development.js (22582:0) commitPassiveUnmountOnFiber node_modules/next/dist/compiled/react-dom/cjs/react-dom.development.js (22596:0) recursivelyTraversePassiveUnmountEffects node_modules/next/dist/compiled/react-dom/cjs/react-dom.development.js (22582:0) commitPassiveUnmountOnFiber node_modules/next/dist/compiled/react-dom/cjs/react-dom.development.js (22629:0)

there seems to be a loop. I saw that some hooks are using the concept of being "mounted" something that doesn't work for some time in React 18. the two questions are, 1) is it possible to call removeObservers only if the parent is still there? b) is it being unmounted and removed without removing observers now?

I will try to add a ? here for example, but I'm not sure if it is only that or an edge case is happening?

return () => {
  mounted.current = false;
  observer.current?.removeObservers();
  observer.current = null;
};

Thanks