diff --git a/CHANGES.md b/CHANGES.md
index 472c56648a..9b4e022d5e 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,9 @@
+Changes in RiotX 0.9.1 (2019-12-05)
+===================================================
+
+Bugfix 🐛:
+ - Fix an issue with DB transaction (#740)
+
 Changes in RiotX 0.9.0 (2019-12-05)
 ===================================================
 
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/RealmCryptoStore.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/RealmCryptoStore.kt
index 8a3b66dfe5..c194a400ce 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/RealmCryptoStore.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/RealmCryptoStore.kt
@@ -643,9 +643,10 @@ internal class RealmCryptoStore(private val realmConfiguration: RealmConfigurati
     }
 
     override fun getOutgoingRoomKeyRequestByState(states: Set<OutgoingRoomKeyRequest.RequestState>): OutgoingRoomKeyRequest? {
+        val statesIndex = states.map { it.ordinal }.toTypedArray()
         return doRealmQueryAndCopy(realmConfiguration) {
             it.where<OutgoingRoomKeyRequestEntity>()
-                    .`in`(OutgoingRoomKeyRequestEntityFields.STATE, states.map { it.ordinal }.toTypedArray())
+                    .`in`(OutgoingRoomKeyRequestEntityFields.STATE, statesIndex)
                     .findFirst()
         }
                 ?.toOutgoingRoomKeyRequest()
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/model/OutgoingRoomKeyRequestEntity.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/model/OutgoingRoomKeyRequestEntity.kt
index b7bcb603f5..3130bd2f89 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/model/OutgoingRoomKeyRequestEntity.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/store/db/model/OutgoingRoomKeyRequestEntity.kt
@@ -41,6 +41,7 @@ internal open class OutgoingRoomKeyRequestEntity(
      * Convert to OutgoingRoomKeyRequest
      */
     fun toOutgoingRoomKeyRequest(): OutgoingRoomKeyRequest {
+        val cancellationTxnId = this.cancellationTxnId
         return OutgoingRoomKeyRequest(
                 RoomKeyRequestBody().apply {
                     algorithm = requestBodyAlgorithm
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/AsyncTransaction.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/AsyncTransaction.kt
index 0f8445d20f..4075f95ae8 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/AsyncTransaction.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/database/AsyncTransaction.kt
@@ -22,12 +22,13 @@ import kotlinx.coroutines.isActive
 import kotlinx.coroutines.withContext
 import timber.log.Timber
 
-suspend fun awaitTransaction(config: RealmConfiguration, transaction: suspend (realm: Realm) -> Unit) = withContext(Dispatchers.Default) {
+suspend fun <T> awaitTransaction(config: RealmConfiguration, transaction: suspend (realm: Realm) -> T) = withContext(Dispatchers.Default) {
     Realm.getInstance(config).use { bgRealm ->
         bgRealm.beginTransaction()
+        val result: T
         try {
             val start = System.currentTimeMillis()
-            transaction(bgRealm)
+            result = transaction(bgRealm)
             if (isActive) {
                 bgRealm.commitTransaction()
                 val end = System.currentTimeMillis()
@@ -39,5 +40,6 @@ suspend fun awaitTransaction(config: RealmConfiguration, transaction: suspend (r
                 bgRealm.cancelTransaction()
             }
         }
+        result
     }
 }
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/filter/DefaultFilterRepository.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/filter/DefaultFilterRepository.kt
index ae8e8ce891..f7df8c512e 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/filter/DefaultFilterRepository.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/session/filter/DefaultFilterRepository.kt
@@ -69,7 +69,7 @@ internal class DefaultFilterRepository @Inject constructor(private val monarchy:
     }
 
     override suspend fun getFilter(): String {
-        return Realm.getInstance(monarchy.realmConfiguration).use {
+        return monarchy.awaitTransaction {
             val filter = FilterEntity.getOrCreate(it)
             if (filter.filterId.isBlank()) {
                 // Use the Json format
@@ -82,7 +82,7 @@ internal class DefaultFilterRepository @Inject constructor(private val monarchy:
     }
 
     override suspend fun getRoomFilter(): String {
-        return Realm.getInstance(monarchy.realmConfiguration).use {
+        return monarchy.awaitTransaction {
             FilterEntity.getOrCreate(it).roomEventFilterJson
         }
     }
diff --git a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/util/Monarchy.kt b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/util/Monarchy.kt
index fc9999225f..848cc43565 100644
--- a/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/util/Monarchy.kt
+++ b/matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/util/Monarchy.kt
@@ -22,8 +22,8 @@ import io.realm.Realm
 import io.realm.RealmModel
 import java.util.concurrent.atomic.AtomicReference
 
-internal suspend fun Monarchy.awaitTransaction(transaction: suspend (realm: Realm) -> Unit) {
-    awaitTransaction(realmConfiguration, transaction)
+internal suspend fun <T> Monarchy.awaitTransaction(transaction: suspend (realm: Realm) -> T): T {
+    return awaitTransaction(realmConfiguration, transaction)
 }
 
 fun <T : RealmModel> Monarchy.fetchCopied(query: (Realm) -> T?): T? {
diff --git a/vector/build.gradle b/vector/build.gradle
index d77f669215..55625d4466 100644
--- a/vector/build.gradle
+++ b/vector/build.gradle
@@ -16,7 +16,7 @@ androidExtensions {
 
 ext.versionMajor = 0
 ext.versionMinor = 9
-ext.versionPatch = 0
+ext.versionPatch = 1
 
 static def getGitTimestamp() {
     def cmd = 'git show -s --format=%ct'