diff --git a/composeApp/src/androidMain/kotlin/mg/dot/feufaro/midi/MidiPlayer.kt b/composeApp/src/androidMain/kotlin/mg/dot/feufaro/midi/MidiPlayer.kt
index 3151d9b..718060c 100644
--- a/composeApp/src/androidMain/kotlin/mg/dot/feufaro/midi/MidiPlayer.kt
+++ b/composeApp/src/androidMain/kotlin/mg/dot/feufaro/midi/MidiPlayer.kt
@@ -424,11 +424,11 @@ actual class FMediaPlayer actual constructor(
                         }
                     }
                 }
-
                 val currentGrid = (currentTickPos / resolution).toLong()
                 if (boundModel?.activeIndex?.value != currentGrid.toInt()) {
-                    boundModel?.updateActiveIndex(currentGrid)
+                    boundModel?.updateActiveIndexByIndex(currentGrid.toInt())
                 }
+                //println("C= ${currentGrid.toInt()} et shrd ${boundModel?.activeIndex?.value}")
                 idx++
             }
         }
@@ -802,13 +802,18 @@ actual class FMediaPlayer actual constructor(
     private fun startSyncLoop(sharedScreenModel: SharedScreenModel) {
         syncJob?.cancel()
         syncJob = playerScope.launch(Dispatchers.Default) {
+            var lastSentGrid = -1
             while (isActive) {
                 if (isRunning && !isHolding) {
                     val elapsedNano  = System.nanoTime() - lastEventNano
                     val extraTicks   = (elapsedNano / (usPerTick * 1000)).toLong().coerceAtLeast(0L)
                     val interpolated = (currentTickPos + extraTicks) / resolution
                     val rawGrid      = interpolated.toInt().coerceAtLeast(0)
-                    sharedScreenModel.updateActiveIndexByIndex(rawGrid)
+                    //sharedScreenModel.updateActiveIndexByIndex(rawGrid)
+                    if (interpolated.toInt() >= lastSentGrid) {
+                        lastSentGrid = interpolated.toInt()
+                        sharedScreenModel.updateActiveIndexByIndex(interpolated.toInt())
+                    }
                 }
                 delay(16)
             }