diff --git a/graphview/src/main/java/dev/bandb/graphview/layouts/layered/SugiyamaLayoutManager.kt b/graphview/src/main/java/dev/bandb/graphview/layouts/layered/SugiyamaLayoutManager.kt
index 9b7553b..75d6c42 100644
--- a/graphview/src/main/java/dev/bandb/graphview/layouts/layered/SugiyamaLayoutManager.kt
+++ b/graphview/src/main/java/dev/bandb/graphview/layouts/layered/SugiyamaLayoutManager.kt
@@ -368,7 +368,7 @@ class SugiyamaLayoutManager @JvmOverloads constructor(private val context: Conte
                 root[i][n] = n
                 align[i][n] = n
                 sink[i][n] = n
-                shift[i][n] = java.lang.Float.MAX_VALUE
+                shift[i][n] = 0f
                 x[i][n] = java.lang.Float.MIN_VALUE
                 blockWidth[i][n] = 0f
             }
@@ -596,9 +596,9 @@ class SugiyamaLayoutManager @JvmOverloads constructor(private val context: Conte
                     // the first median
                     val median = floor((adjNodes.size + 1) / 2.0).toInt()
                     val medianCount = if (adjNodes.size % 2 == 1) 1 else 2
-
+                    val medianIndexList = if (leftToRight) (0 until medianCount) else (0 until medianCount).reversed()
                     // for all median neighbours in direction of H
-                    (0 until medianCount).forEach { count ->
+                    medianIndexList.forEach { count ->
                         val m = adjNodes[median + count - 1]
                         val posM = pos(m)
 
diff --git a/sample/build.gradle b/sample/build.gradle
index a48898e..6b9dd19 100644
--- a/sample/build.gradle
+++ b/sample/build.gradle
@@ -20,6 +20,10 @@ android {
         }
     }
 
+    packagingOptions {
+        pickFirst 'META-INF/library_release.kotlin_module'
+    }
+
     compileOptions {
         sourceCompatibility 1.8
         targetCompatibility 1.8
@@ -34,7 +38,7 @@ dependencies {
     implementation "androidx.recyclerview:recyclerview:1.2.0"
     implementation 'androidx.appcompat:appcompat:1.2.0'
     implementation 'androidx.constraintlayout:constraintlayout:2.1.0-beta01'
-    implementation 'com.otaliastudios:zoomlayout:1.8.0'
+    implementation 'com.otaliastudios:zoomlayout:1.9.0'
     implementation 'com.google.android.material:material:1.3.0'
     implementation project(path: ':graphview')
 }
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