diff --git a/packages/@dcl/sdk-commands/src/logic/bundle.ts b/packages/@dcl/sdk-commands/src/logic/bundle.ts
index 01654551f..c1a5bfc5b 100644
--- a/packages/@dcl/sdk-commands/src/logic/bundle.ts
+++ b/packages/@dcl/sdk-commands/src/logic/bundle.ts
@@ -85,11 +85,16 @@ for (const path in compositeFromLoader) {
 
 if ((entrypoint as any).main !== undefined) {
   function _INTERNAL_startup_system() {
-    const maybePromise = (entrypoint as any).main()
-    if (maybePromise && typeof maybePromise === 'object' && typeof (maybePromise as unknown as Promise<unknown>).then === 'function') {
-      maybePromise.catch(console.error)
+    try {
+      const maybePromise = (entrypoint as any).main()
+      if (maybePromise && typeof maybePromise === 'object' && typeof (maybePromise as unknown as Promise<unknown>).then === 'function') {
+        maybePromise.catch(console.error)
+      }
+    } catch (e) {
+     console.error(e)
+    } finally {
+      engine.removeSystem(_INTERNAL_startup_system)
     }
-    engine.removeSystem(_INTERNAL_startup_system)
   }
   engine.addSystem(_INTERNAL_startup_system, Infinity)
 }
diff --git a/packages/@dcl/sdk/src/network/entities.ts b/packages/@dcl/sdk/src/network/entities.ts
index 61df9bb5a..64183ee39 100644
--- a/packages/@dcl/sdk/src/network/entities.ts
+++ b/packages/@dcl/sdk/src/network/entities.ts
@@ -43,7 +43,7 @@ export function entityUtils(engine: IEngine, profile: IProfile) {
     let componentsIdsMutable = [...componentIds]
     // Profile not initialized
     if (!profile?.networkId) {
-      throw new Error('Profile not initialized. Called syncEntity inside the main() function.')
+      throw new Error('Profile not initialized. Call syncEntity inside the main() function.')
     }
 
     // We use the networkId generated by the user address to identify this entity through the network
diff --git a/packages/@dcl/sdk/src/players/index.ts b/packages/@dcl/sdk/src/players/index.ts
index 149e3a23b..a6956c203 100644
--- a/packages/@dcl/sdk/src/players/index.ts
+++ b/packages/@dcl/sdk/src/players/index.ts
@@ -29,8 +29,8 @@ function definePlayerHelper(engine: IEngine) {
   const AvatarBase = defineAvatarBase(engine)
   const playerEntities = new Map<Entity, string>()
 
-  let onEnterSceneCb: ((player: GetPlayerDataRes) => void) | undefined = undefined
-  let onLeaveSceneCb: ((userId: string) => void) | undefined = undefined
+  const onEnterSceneCb: ((player: GetPlayerDataRes) => void)[] = []
+  const onLeaveSceneCb: ((userId: string) => void)[] = []
 
   engine.addSystem(() => {
     const players = Array.from(engine.getEntitiesWith(PlayerIdentityData, AvatarBase))
@@ -41,14 +41,14 @@ function definePlayerHelper(engine: IEngine) {
         playerEntities.set(entity, identity.address)
 
         // Call onEnter callback
-        if (onEnterSceneCb) {
-          onEnterSceneCb(getPlayer({ userId: identity.address })!)
+        if (onEnterSceneCb.length) {
+          onEnterSceneCb.forEach(($) => $(getPlayer({ userId: identity.address })!))
         }
 
         // Check for changes/remove callbacks
         AvatarBase.onChange(entity, (value) => {
-          if (!value && onLeaveSceneCb && playerEntities.get(entity)) {
-            onLeaveSceneCb(playerEntities.get(entity)!)
+          if (!value && onLeaveSceneCb.length && playerEntities.get(entity)) {
+            onLeaveSceneCb.forEach(($) => $(playerEntities.get(entity)!))
             playerEntities.delete(entity)
           }
         })
@@ -58,10 +58,10 @@ function definePlayerHelper(engine: IEngine) {
 
   return {
     onEnterScene(cb: (player: GetPlayerDataRes) => void) {
-      onEnterSceneCb = cb
+      onEnterSceneCb.push(cb)
     },
     onLeaveScene(cb: (userId: string) => void) {
-      onLeaveSceneCb = cb
+      onLeaveSceneCb.push(cb)
     },
     /**
      * Returns the info of the player if it's in the scene.