Merge branch 'patch/v1.5.x'

* patch/v1.5.x:
  Fix index offset in sidx parsing (video-dev#6221)
  Fix issues with detached and destroyed level selection (video-dev#6216)

src/controller/stream-controller.ts

@@ -232,7 +232,7 @@ export default class StreamController
     }
 
     const level = hls.nextLoadLevel;
-    if (!this.buffering || !levels?.[level]) {
+    if (!levels?.[level]) {
       return;
     }