diff --git a/src/scripts/common.ts b/src/scripts/common.ts
index 0ba0948..b303d9c 100644
--- a/src/scripts/common.ts
+++ b/src/scripts/common.ts
@@ -96,7 +96,7 @@ export function groupTracksPerScheme(
   tracks: Track[],
   initial: Record<string, Track[]> = {},
 ): Record<string, Track[]> {
-  const acc: Record<string, Track[]> = {};
+  const acc: Record<string, Track[]> = initial;
 
   tracks.forEach((track) => {
     const scheme = track.uri.substring(0, track.uri.indexOf(":"));
diff --git a/src/scripts/configurator/input/worker.ts b/src/scripts/configurator/input/worker.ts
index 4dc43da..b3218e0 100644
--- a/src/scripts/configurator/input/worker.ts
+++ b/src/scripts/configurator/input/worker.ts
@@ -77,7 +77,7 @@ async function groupConsult(tracks: Track[]) {
       }
 
       const conn = await connections[scheme].promise;
-      const result = await conn.groupConsult(groups[scheme] || []);
+      const result = await conn.groupConsult(groups[scheme] || {});
 
       return result;
     }),
@@ -91,6 +91,10 @@ async function groupConsult(tracks: Track[]) {
 async function list(cachedTracks: Track[] = []) {
   const groups = await groupConsult(cachedTracks);
 
+  Object.keys(connections).forEach((scheme) => {
+    if (!groups[scheme]) groups[scheme] = { available: true, tracks: [] };
+  });
+
   const promises = Object.entries(groups).map(
     async ([scheme, { available, tracks }]: [string, ConsultGrouping]) => {
       if (!available) return tracks;