diff --git a/After Effects Samples/Time Stretch Work Area.aep b/After Effects Samples/Time Stretch Work Area.aep
index 567f584..9f97618 100644
--- a/After Effects Samples/Time Stretch Work Area.aep
+++ b/After Effects Samples/Time Stretch Work Area.aep
Binary files differ
diff --git a/lottie/src/main/java/com/airbnb/lottie/animation/content/ContentGroup.java b/lottie/src/main/java/com/airbnb/lottie/animation/content/ContentGroup.java
index cc3d166..980bb84 100644
--- a/lottie/src/main/java/com/airbnb/lottie/animation/content/ContentGroup.java
+++ b/lottie/src/main/java/com/airbnb/lottie/animation/content/ContentGroup.java
@@ -169,7 +169,7 @@
     if (transformAnimation != null) {
       matrix.preConcat(transformAnimation.getMatrix());
       int opacity = transformAnimation.getOpacity() == null ? 100 : transformAnimation.getOpacity().getValue();
-      layerAlpha = (int) ((opacity / 100f * parentAlpha / 255f) * 255);
+      layerAlpha = (int) ((opacity / 100f * parentAlpha / 255f ) * 255);
     } else {
       layerAlpha = parentAlpha;
     }
diff --git a/lottie/src/main/java/com/airbnb/lottie/model/layer/CompositionLayer.java b/lottie/src/main/java/com/airbnb/lottie/model/layer/CompositionLayer.java
index 7c923a6..07947b6 100644
--- a/lottie/src/main/java/com/airbnb/lottie/model/layer/CompositionLayer.java
+++ b/lottie/src/main/java/com/airbnb/lottie/model/layer/CompositionLayer.java
@@ -160,7 +160,7 @@
       progress -= layerModel.getStartProgress();
     }
     //Time stretch needs to be divided if is not "__container"
-    if (layerModel.getTimeStretch() != 0 && !"__container".equals(layerModel.getName())) {
+    if (layerModel.getTimeStretch() != 0f && layerModel.getTimeStretch() != 1f && !"__container".equals(layerModel.getName())) {
       progress /= layerModel.getTimeStretch();
     }
     for (int i = layers.size() - 1; i >= 0; i--) {
diff --git a/lottie/src/main/java/com/airbnb/lottie/model/layer/Layer.java b/lottie/src/main/java/com/airbnb/lottie/model/layer/Layer.java
index edea4fa..4a7eda7 100644
--- a/lottie/src/main/java/com/airbnb/lottie/model/layer/Layer.java
+++ b/lottie/src/main/java/com/airbnb/lottie/model/layer/Layer.java
@@ -109,7 +109,10 @@
   }
 
   float getStartProgress() {
-    return startFrame / composition.getDurationFrames();
+    if ("__container".equals(layerName)) {
+      return startFrame / composition.getDurationFrames();
+    }
+    return (startFrame - composition.getStartFrame()) / composition.getDurationFrames();
   }
 
   List<Keyframe<Float>> getInOutKeyframes() {
diff --git a/lottie/src/main/java/com/airbnb/lottie/value/Keyframe.java b/lottie/src/main/java/com/airbnb/lottie/value/Keyframe.java
index 6d110b7..c440321 100644
--- a/lottie/src/main/java/com/airbnb/lottie/value/Keyframe.java
+++ b/lottie/src/main/java/com/airbnb/lottie/value/Keyframe.java
@@ -111,6 +111,7 @@
     }
     if (startProgress == Float.MIN_VALUE) {
       startProgress = (startFrame - composition.getStartFrame()) / composition.getDurationFrames();
+      // startProgress = startFrame / composition.getDurationFrames();
     }
     return startProgress;
   }
diff --git a/sample/src/main/assets/child.json b/sample/src/main/assets/child.json
new file mode 100644
index 0000000..8cc8b99
--- /dev/null
+++ b/sample/src/main/assets/child.json
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/sample/src/main/assets/child2.json b/sample/src/main/assets/child2.json
new file mode 100644
index 0000000..62a467b
--- /dev/null
+++ b/sample/src/main/assets/child2.json
@@ -0,0 +1 @@
+{"v":"5.12.2","fr":25,"ip":25,"op":50,"w":400,"h":400,"nm":"Child 2","ddd":0,"assets":[],"layers":[{"ddd":0,"ind":1,"ty":4,"nm":"Shape Layer 1","sr":0.5,"ks":{"o":{"a":0,"k":100,"ix":11},"r":{"a":0,"k":0,"ix":10},"p":{"a":0,"k":[200,200,0],"ix":2,"l":2},"a":{"a":0,"k":[0,0,0],"ix":1,"l":2},"s":{"a":0,"k":[100,100,100],"ix":6,"l":2}},"ao":0,"shapes":[{"ty":"gr","it":[{"ty":"rc","d":1,"s":{"a":0,"k":[91.945,91.945],"ix":2},"p":{"a":0,"k":[0,0],"ix":3},"r":{"a":0,"k":0,"ix":4},"nm":"Rectangle Path 1","mn":"ADBE Vector Shape - Rect","hd":false},{"ty":"st","c":{"a":0,"k":[0.018933614716,0,1,1],"ix":3},"o":{"a":0,"k":100,"ix":4},"w":{"a":0,"k":10,"ix":5},"lc":1,"lj":1,"ml":4,"bm":0,"nm":"Stroke 1","mn":"ADBE Vector Graphic - Stroke","hd":false},{"ty":"fl","c":{"a":0,"k":[1,0,0,1],"ix":4},"o":{"a":0,"k":100,"ix":5},"r":1,"bm":0,"nm":"Fill 1","mn":"ADBE Vector Graphic - Fill","hd":false},{"ty":"tr","p":{"a":1,"k":[{"i":{"x":0.833,"y":0.833},"o":{"x":0.167,"y":0.167},"t":25,"s":[-140,-140.027],"to":[0,0],"ti":[0,0]},{"t":50,"s":[136,140]}],"ix":2},"a":{"a":0,"k":[0,0],"ix":1},"s":{"a":0,"k":[100,100],"ix":3},"r":{"a":0,"k":0,"ix":6},"o":{"a":0,"k":100,"ix":7},"sk":{"a":0,"k":0,"ix":4},"sa":{"a":0,"k":0,"ix":5},"nm":"Transform"}],"nm":"Rectangle 1","np":3,"cix":2,"bm":0,"ix":1,"mn":"ADBE Vector Group","hd":false}],"ip":25,"op":50,"st":25,"ct":1,"bm":0}],"markers":[],"props":{}}
\ No newline at end of file
diff --git a/sample/src/main/assets/parent.json b/sample/src/main/assets/parent.json
index 306e867..4984611 100644
--- a/sample/src/main/assets/parent.json
+++ b/sample/src/main/assets/parent.json
@@ -1 +1 @@
-{"v":"5.12.2","fr":25,"ip":0,"op":50,"w":400,"h":400,"nm":"Parent","ddd":0,"assets":[{"id":"comp_0","nm":"Child","fr":25,"layers":[{"ddd":0,"ind":1,"ty":4,"nm":"Shape Layer 1","sr":1,"ks":{"o":{"a":0,"k":100,"ix":11},"r":{"a":0,"k":0,"ix":10},"p":{"a":0,"k":[200,200,0],"ix":2,"l":2},"a":{"a":0,"k":[0,0,0],"ix":1,"l":2},"s":{"a":0,"k":[100,100,100],"ix":6,"l":2}},"ao":0,"shapes":[{"ty":"gr","it":[{"ty":"rc","d":1,"s":{"a":0,"k":[91.945,91.945],"ix":2},"p":{"a":0,"k":[0,0],"ix":3},"r":{"a":0,"k":0,"ix":4},"nm":"Rectangle Path 1","mn":"ADBE Vector Shape - Rect","hd":false},{"ty":"st","c":{"a":0,"k":[0.018933614716,0,1,1],"ix":3},"o":{"a":0,"k":100,"ix":4},"w":{"a":0,"k":10,"ix":5},"lc":1,"lj":1,"ml":4,"bm":0,"nm":"Stroke 1","mn":"ADBE Vector Graphic - Stroke","hd":false},{"ty":"fl","c":{"a":0,"k":[1,0,0,1],"ix":4},"o":{"a":0,"k":100,"ix":5},"r":1,"bm":0,"nm":"Fill 1","mn":"ADBE Vector Graphic - Fill","hd":false},{"ty":"tr","p":{"a":1,"k":[{"i":{"x":0.833,"y":0.833},"o":{"x":0.167,"y":0.167},"t":0,"s":[-136.027,-140.027],"to":[0,0],"ti":[0,0]},{"t":49,"s":[136,140]}],"ix":2},"a":{"a":0,"k":[0,0],"ix":1},"s":{"a":0,"k":[100,100],"ix":3},"r":{"a":0,"k":0,"ix":6},"o":{"a":0,"k":100,"ix":7},"sk":{"a":0,"k":0,"ix":4},"sa":{"a":0,"k":0,"ix":5},"nm":"Transform"}],"nm":"Rectangle 1","np":3,"cix":2,"bm":0,"ix":1,"mn":"ADBE Vector Group","hd":false}],"ip":0,"op":50,"st":0,"ct":1,"bm":0}]}],"layers":[{"ddd":0,"ind":1,"ty":0,"nm":"Child","refId":"comp_0","sr":1,"ks":{"o":{"a":0,"k":100,"ix":11},"r":{"a":0,"k":0,"ix":10},"p":{"a":0,"k":[200,200,0],"ix":2,"l":2},"a":{"a":0,"k":[200,200,0],"ix":1,"l":2},"s":{"a":0,"k":[100,100,100],"ix":6,"l":2}},"ao":0,"w":400,"h":400,"ip":25,"op":75,"st":25,"bm":0}],"markers":[],"props":{}}
\ No newline at end of file
+{"v":"5.12.2","fr":25,"ip":25,"op":50,"w":400,"h":400,"nm":"Parent","ddd":0,"assets":[{"id":"comp_0","nm":"Child","fr":25,"layers":[{"ddd":0,"ind":1,"ty":4,"nm":"Shape Layer 1","sr":1,"ks":{"o":{"a":0,"k":100,"ix":11},"r":{"a":0,"k":0,"ix":10},"p":{"a":0,"k":[200,200,0],"ix":2,"l":2},"a":{"a":0,"k":[0,0,0],"ix":1,"l":2},"s":{"a":0,"k":[100,100,100],"ix":6,"l":2}},"ao":0,"shapes":[{"ty":"gr","it":[{"ty":"rc","d":1,"s":{"a":0,"k":[91.945,91.945],"ix":2},"p":{"a":0,"k":[0,0],"ix":3},"r":{"a":0,"k":0,"ix":4},"nm":"Rectangle Path 1","mn":"ADBE Vector Shape - Rect","hd":false},{"ty":"st","c":{"a":0,"k":[0.018933614716,0,1,1],"ix":3},"o":{"a":0,"k":100,"ix":4},"w":{"a":0,"k":10,"ix":5},"lc":1,"lj":1,"ml":4,"bm":0,"nm":"Stroke 1","mn":"ADBE Vector Graphic - Stroke","hd":false},{"ty":"fl","c":{"a":0,"k":[1,0,0,1],"ix":4},"o":{"a":0,"k":100,"ix":5},"r":1,"bm":0,"nm":"Fill 1","mn":"ADBE Vector Graphic - Fill","hd":false},{"ty":"tr","p":{"a":1,"k":[{"i":{"x":0.833,"y":0.833},"o":{"x":0.167,"y":0.167},"t":0,"s":[-140,-140.027],"to":[0,0],"ti":[0,0]},{"t":50,"s":[136,140]}],"ix":2},"a":{"a":0,"k":[0,0],"ix":1},"s":{"a":0,"k":[100,100],"ix":3},"r":{"a":0,"k":0,"ix":6},"o":{"a":0,"k":100,"ix":7},"sk":{"a":0,"k":0,"ix":4},"sa":{"a":0,"k":0,"ix":5},"nm":"Transform"}],"nm":"Rectangle 1","np":3,"cix":2,"bm":0,"ix":1,"mn":"ADBE Vector Group","hd":false}],"ip":0,"op":50,"st":0,"ct":1,"bm":0}]}],"layers":[{"ddd":0,"ind":1,"ty":0,"nm":"Child","refId":"comp_0","sr":0.5,"ks":{"o":{"a":0,"k":100,"ix":11},"r":{"a":0,"k":0,"ix":10},"p":{"a":0,"k":[200,200,0],"ix":2,"l":2},"a":{"a":0,"k":[200,200,0],"ix":1,"l":2},"s":{"a":0,"k":[100,100,100],"ix":6,"l":2}},"ao":0,"w":400,"h":400,"ip":24.5,"op":49.5,"st":24.5,"bm":0}],"markers":[],"props":{}}
\ No newline at end of file
diff --git a/sample/src/main/assets/test_parent.json b/sample/src/main/assets/test_parent.json
deleted file mode 100644
index 2b7e75b..0000000
--- a/sample/src/main/assets/test_parent.json
+++ /dev/null
@@ -1 +0,0 @@
-{"v":"5.12.2","fr":25,"ip":11,"op":37,"w":400,"h":400,"nm":"TestParent","ddd":0,"assets":[{"id":"comp_0","nm":"Test","fr":25,"layers":[{"ddd":0,"ind":1,"ty":4,"nm":"Shape Layer 1","sr":1,"ks":{"o":{"a":0,"k":100,"ix":11},"r":{"a":0,"k":0,"ix":10},"p":{"a":0,"k":[200,200,0],"ix":2,"l":2},"a":{"a":0,"k":[0,0,0],"ix":1,"l":2},"s":{"a":0,"k":[100,100,100],"ix":6,"l":2}},"ao":0,"shapes":[{"ty":"gr","it":[{"ty":"rc","d":1,"s":{"a":0,"k":[100,100],"ix":2},"p":{"a":0,"k":[0,0],"ix":3},"r":{"a":0,"k":0,"ix":4},"nm":"Rectangle Path 1","mn":"ADBE Vector Shape - Rect","hd":false},{"ty":"fl","c":{"a":0,"k":[1,0,0,1],"ix":4},"o":{"a":0,"k":100,"ix":5},"r":1,"bm":0,"nm":"Fill 1","mn":"ADBE Vector Graphic - Fill","hd":false},{"ty":"tr","p":{"a":1,"k":[{"i":{"x":0.833,"y":0.833},"o":{"x":0.167,"y":0.167},"t":0,"s":[-138.164,-136.195],"to":[0,0],"ti":[0,0]},{"i":{"x":0.833,"y":0.833},"o":{"x":0.167,"y":0.167},"t":24,"s":[134.303,136.235],"to":[0,0],"ti":[0,0]},{"t":34,"s":[132,216]}],"ix":2},"a":{"a":0,"k":[0,0],"ix":1},"s":{"a":0,"k":[100,100],"ix":3},"r":{"a":0,"k":0,"ix":6},"o":{"a":0,"k":100,"ix":7},"sk":{"a":0,"k":0,"ix":4},"sa":{"a":0,"k":0,"ix":5},"nm":"Transform"}],"nm":"Rectangle 1","np":2,"cix":2,"bm":0,"ix":1,"mn":"ADBE Vector Group","hd":false}],"ip":0,"op":35.7142857142857,"st":0,"ct":1,"bm":0}]}],"layers":[{"ddd":0,"ind":1,"ty":0,"nm":"Test","refId":"comp_0","sr":0.5,"ks":{"o":{"a":0,"k":100,"ix":11},"r":{"a":0,"k":0,"ix":10},"p":{"a":0,"k":[200,200,0],"ix":2,"l":2},"a":{"a":0,"k":[200,200,0],"ix":1,"l":2},"s":{"a":0,"k":[100,100,100],"ix":6,"l":2}},"ao":0,"w":400,"h":400,"ip":25,"op":37.5,"st":25,"bm":0}],"markers":[],"props":{}}
\ No newline at end of file