diff --git a/packages/core/src/internal/react-enhancer.ts b/packages/core/src/internal/react-enhancer.ts
index 14b4a00..3712fee 100644
--- a/packages/core/src/internal/react-enhancer.ts
+++ b/packages/core/src/internal/react-enhancer.ts
@@ -58,7 +58,7 @@ const reactEnhancer = <T>(source$: Observable<T>): BehaviorObservable<T> => {
       timeoutToken = setTimeout(() => {
         error = EMPTY_VALUE
       }, 50)
-      throw error
+      return error
     }
 
     try {
@@ -70,7 +70,6 @@ const reactEnhancer = <T>(source$: Observable<T>): BehaviorObservable<T> => {
       if (promise) return promise
 
       let value = EMPTY_VALUE
-      let isSyncError = false
       promise = {
         type: "s",
         payload: result
@@ -82,7 +81,7 @@ const reactEnhancer = <T>(source$: Observable<T>): BehaviorObservable<T> => {
                 value = v
               },
               error(e) {
-                error = e
+                error = { type: "e", payload: e }
                 timeoutToken = setTimeout(() => {
                   error = EMPTY_VALUE
                 }, 50)
@@ -90,10 +89,7 @@ const reactEnhancer = <T>(source$: Observable<T>): BehaviorObservable<T> => {
             }),
           )
           .toPromise()
-          .catch((e) => {
-            if (isSyncError) return
-            throw e
-          })
+          .catch(() => {})
           .finally(() => {
             promise = undefined
             valueResult = undefined
@@ -105,8 +101,7 @@ const reactEnhancer = <T>(source$: Observable<T>): BehaviorObservable<T> => {
       }
 
       if (error !== EMPTY_VALUE) {
-        isSyncError = true
-        throw error
+        return error
       }
 
       return promise
diff --git a/packages/core/src/internal/useObservable.ts b/packages/core/src/internal/useObservable.ts
index 0b7ba5a..0cbdeac 100644
--- a/packages/core/src/internal/useObservable.ts
+++ b/packages/core/src/internal/useObservable.ts
@@ -10,15 +10,10 @@ type Action = "e" | "v" | "s"
 const reducer = (
   current: { type: Action; payload: any },
   action: { type: Action; payload: any },
-) => {
-  if (action.type === ERROR) {
-    throw action.payload
-  }
-  return Object.is(current.payload, action.payload) &&
-    current.type === action.type
+) =>
+  Object.is(current.payload, action.payload) && current.type === action.type
     ? current
     : action
-}
 
 const init = (source$: BehaviorObservable<any>) => source$.getValue()
 
@@ -26,13 +21,10 @@ export const useObservable = <O>(
   source$: BehaviorObservable<O>,
 ): Exclude<O, typeof SUSPENSE> => {
   const [state, dispatch] = useReducer(reducer, source$, init)
+  if (state.type === ERROR) throw state.payload
 
   useEffect(() => {
-    try {
-      dispatch(source$.getValue())
-    } catch (e) {
-      return dispatch({ type: ERROR, payload: e })
-    }
+    dispatch(source$.getValue())
     const subscription = source$.subscribe(
       (value) => {
         if ((value as any) === SUSPENSE) {