diff --git a/sdk/src/main/java/cloud/mindbox/mobile_sdk/Mindbox.kt b/sdk/src/main/java/cloud/mindbox/mobile_sdk/Mindbox.kt
index 5bcfe6e52..004759c0a 100644
--- a/sdk/src/main/java/cloud/mindbox/mobile_sdk/Mindbox.kt
+++ b/sdk/src/main/java/cloud/mindbox/mobile_sdk/Mindbox.kt
@@ -95,6 +95,8 @@ object Mindbox : MindboxLog {
 
     private val mutex = Mutex()
 
+    private val inAppMutex = Mutex()
+
     private var firstInitCall: Boolean = true
 
     /**
@@ -522,7 +524,7 @@ object Mindbox : MindboxLog {
                             if (activity != null && lifecycleManager.isCurrentActivityResumed) {
                                 inAppMessageManager.registerCurrentActivity(activity)
                                 mindboxScope.launch {
-                                    mutex.withLock {
+                                    inAppMutex.withLock {
                                         firstInitCall = false
                                         inAppMessageManager.listenEventAndInApp()
                                         inAppMessageManager.initLogs()
@@ -576,8 +578,8 @@ object Mindbox : MindboxLog {
                             )
                             if (firstInitCall) {
                                 mindboxScope.launch {
-                                    mutex.withLock {
-                                        InitializeLock.await(InitializeLock.State.SAVE_MINDBOX_CONFIG)
+                                    InitializeLock.await(InitializeLock.State.SAVE_MINDBOX_CONFIG)
+                                    inAppMutex.withLock {
                                         if (!firstInitCall) return@launch
                                         firstInitCall = false
                                         inAppMessageManager.listenEventAndInApp()