From cab49a37ec074012ab9ebc1961d23ebbb80c5f92 Mon Sep 17 00:00:00 2001
From: Victor Giers <mail@victorgiers.com>
Date: Mon, 13 Jul 2026 05:01:21 +0200
Subject: [PATCH] Update Ableton exporter builders to correctly initialize
 track and project structures

---
 src/lib/exporters/ableton/builders.ts | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/lib/exporters/ableton/builders.ts b/src/lib/exporters/ableton/builders.ts
index 06298bc..af6c8df 100644
--- a/src/lib/exporters/ableton/builders.ts
+++ b/src/lib/exporters/ableton/builders.ts
@@ -850,6 +850,8 @@ async function buildReturnTrack(
   returnTrack.Name.EffectiveName['@Value'] = EFFECTS[projectData.effects.effectType] || '';
   returnTrack.Name.UserName['@Value'] = EFFECTS[projectData.effects.effectType] || '';
   setColorValue(returnTrack, 28);
+  returnTrack.DeviceChain.Mixer.Sends = {};
+  returnTrack.DeviceChain.DeviceChain.Devices = {} as any;
 
   if (projectData.effects.effectType === EffectType.Reverb) {
     const effectReverbTemplate = await loadTemplate<ALSReverb>('effectReverb', abletonVersion);
@@ -974,11 +976,13 @@ export async function buildProject(projectData: ProjectRawData, exporterParams:
       `${projectData.scenesSettings.timeSignature.numerator}/${projectData.scenesSettings.timeSignature.denominator}`
     ] || TIME_SIGNATURES['4/4'];
 
-  project.Ableton.LiveSet.Tracks['#'] = await buildTracks(
+  const tracks = await buildTracks(
     transformedData.tracks,
+    transformedData.groupLanes,
     transformedData.scenes.length,
     exporterParams,
   );
+  project.Ableton.LiveSet.Tracks = { '#': tracks } as any;
 
   if (exporterParams.sendEffects) {
     const returnTrack = await buildReturnTrack(
@@ -1007,14 +1011,16 @@ export async function buildProject(projectData: ProjectRawData, exporterParams:
   if (exporterParams.sendEffects) {
     project.Ableton.LiveSet.SendsPre = {
       SendPreBool: {
-        '@Id': 1,
+        '@Id': 0,
         '@Value': 'false',
       },
     };
+  } else {
+    project.Ableton.LiveSet.SendsPre = {} as any;
   }
 
   const fixedRoot = fixIds(project);
-  fixedRoot.Ableton.LiveSet.NextPointeeId['@Value'] = getId() + 1;
+  fixedRoot.Ableton.LiveSet.NextPointeeId['@Value'] = getId();
 
   if (import.meta.env.DEV) {
     console.log('ROOT', fixedRoot);