diff --git a/bar.go b/bar.go
index 0f993cf..9c13624 100644
--- a/bar.go
+++ b/bar.go
@@ -247,7 +247,8 @@
 	if isClosed(b.done) {
 		return b.state
 	}
-	ch := make(chan state, 1)
+	// ch := make(chan state, 1)
+	ch := make(chan state)
 	b.stateReqCh <- ch
 	return <-ch
 }
@@ -358,6 +359,9 @@
 }
 
 func draw(s *state, termWidth int, ws *widthSync) []byte {
+	if len(s.prependFuncs) != len(ws.listen) {
+		return []byte{}
+	}
 	if termWidth <= 0 {
 		termWidth = s.width
 	}
diff --git a/progress.go b/progress.go
index 28da56a..8b9794d 100644
--- a/progress.go
+++ b/progress.go
@@ -297,7 +297,7 @@
 					for i := 0; i < numBars; i++ {
 						resultCh <- result
 					}
-					// close(resultCh)
+					close(resultCh)
 				}(listenCh, prepWidthSync.result[i])
 			}
 
@@ -307,7 +307,10 @@
 			wg.Add(numBars)
 			for i := 0; i < numBars; i++ {
 				go func() {
-					defer recoverIfPanic()
+					// defer recoverIfPanic()
+					defer func() {
+						wg.Done()
+					}()
 					drawer(ibars, ibbCh, prepWidthSync)
 				}()
 			}
@@ -315,9 +318,6 @@
 				wg.Wait()
 				close(ibbCh)
 				close(stopWidthListen)
-				for _, ch := range prepWidthSync.result {
-					close(ch)
-				}
 				for _, ch := range prepWidthSync.listen {
 					close(ch)
 				}