diff --git a/app/src/androidTest/java/com/nextcloud/test/Flaky.kt b/app/src/androidTest/java/com/nextcloud/test/Flaky.kt
new file mode 100644
index 000000000000..c4ae3ae7dadb
--- /dev/null
+++ b/app/src/androidTest/java/com/nextcloud/test/Flaky.kt
@@ -0,0 +1,11 @@
+/*
+ * Nextcloud - Android Client
+ *
+ * SPDX-FileCopyrightText: 2026 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+package com.nextcloud.test
+
+@Retention(AnnotationRetention.RUNTIME)
+@Target(AnnotationTarget.FUNCTION, AnnotationTarget.CLASS)
+annotation class Flaky(val reason: String)
diff --git a/app/src/androidTest/java/com/nextcloud/ui/SetStatusMessageBottomSheetIT.kt b/app/src/androidTest/java/com/nextcloud/ui/SetStatusMessageBottomSheetIT.kt
index 98fdb71dfd6e..96d679cb23fc 100644
--- a/app/src/androidTest/java/com/nextcloud/ui/SetStatusMessageBottomSheetIT.kt
+++ b/app/src/androidTest/java/com/nextcloud/ui/SetStatusMessageBottomSheetIT.kt
@@ -15,6 +15,7 @@ import androidx.test.espresso.matcher.ViewMatchers.isDisplayed
 import androidx.test.espresso.matcher.ViewMatchers.isRoot
 import androidx.test.espresso.matcher.ViewMatchers.withId
 import androidx.test.rule.GrantPermissionRule
+import com.nextcloud.test.Flaky
 import com.nextcloud.test.GrantTestPermissionRule
 import com.owncloud.android.AbstractIT
 import com.owncloud.android.R
@@ -31,6 +32,7 @@ class SetStatusMessageBottomSheetIT : AbstractIT() {
     val permissionRule: GrantPermissionRule = GrantTestPermissionRule.grantStorageAndNotification()
 
     @Test
+    @Flaky(reason = "Bottom sheet is occasionally not rendered before the assertions run")
     fun open() {
         launchActivity<FileDisplayActivity>().use { scenario ->
             onView(isRoot()).check(matches(isDisplayed()))
diff --git a/app/src/androidTest/java/com/owncloud/android/ui/activity/DrawerActivityIT.kt b/app/src/androidTest/java/com/owncloud/android/ui/activity/DrawerActivityIT.kt
index 38041c714ff4..b02e0c5ad76f 100644
--- a/app/src/androidTest/java/com/owncloud/android/ui/activity/DrawerActivityIT.kt
+++ b/app/src/androidTest/java/com/owncloud/android/ui/activity/DrawerActivityIT.kt
@@ -20,6 +20,7 @@ import androidx.test.rule.GrantPermissionRule
 import com.nextcloud.client.account.User
 import com.nextcloud.client.account.UserAccountManager
 import com.nextcloud.client.account.UserAccountManagerImpl
+import com.nextcloud.test.Flaky
 import com.nextcloud.test.GrantTestPermissionRule
 import com.nextcloud.test.RetryTestRule
 import com.owncloud.android.AbstractIT
@@ -42,6 +43,7 @@ class DrawerActivityIT : AbstractIT() {
     val permissionRule: GrantPermissionRule = GrantTestPermissionRule.grantStorageAndNotification()
 
     @Test
+    @Flaky(reason = "Account switch relaunches FileDisplayActivity, which races with the drawer assertions")
     fun switchAccountViaAccountList() {
         // Switching accounts finishes and relaunches FileDisplayActivity (see
         // FileDisplayActivity.handleRestartIntent). That self-relaunch is incompatible with
diff --git a/app/src/androidTest/java/com/owncloud/android/ui/activity/ReceiveExternalFilesActivityIT.kt b/app/src/androidTest/java/com/owncloud/android/ui/activity/ReceiveExternalFilesActivityIT.kt
index f4dca3d7e8bc..51e534bdb5ff 100644
--- a/app/src/androidTest/java/com/owncloud/android/ui/activity/ReceiveExternalFilesActivityIT.kt
+++ b/app/src/androidTest/java/com/owncloud/android/ui/activity/ReceiveExternalFilesActivityIT.kt
@@ -25,6 +25,7 @@ import androidx.test.espresso.matcher.ViewMatchers.withId
 import androidx.test.espresso.matcher.ViewMatchers.withText
 import com.facebook.testing.screenshot.internal.TestNameDetector
 import com.nextcloud.client.preferences.AppPreferencesImpl
+import com.nextcloud.test.Flaky
 import com.nextcloud.test.GrantStoragePermissionRule
 import com.nextcloud.test.withSelectedText
 import com.nextcloud.utils.extensions.removeFileExtension
@@ -104,6 +105,7 @@ class ReceiveExternalFilesActivityIT : AbstractIT() {
         }
 
     @Test
+    @Flaky(reason = "Rename dialog text selection is not settled when the assertions run")
     fun renameSingleFileUpload() {
         val imageFile = getDummyFile("image.jpg")
         val intent = createSendIntent(imageFile)
diff --git a/app/src/androidTest/java/com/owncloud/android/ui/fragment/FileDetailSharingFragmentIT.kt b/app/src/androidTest/java/com/owncloud/android/ui/fragment/FileDetailSharingFragmentIT.kt
index 2fcd9ac11f06..7176d8d9f80a 100644
--- a/app/src/androidTest/java/com/owncloud/android/ui/fragment/FileDetailSharingFragmentIT.kt
+++ b/app/src/androidTest/java/com/owncloud/android/ui/fragment/FileDetailSharingFragmentIT.kt
@@ -27,6 +27,7 @@ import com.google.android.apps.common.testing.accessibility.framework.Accessibil
 import com.google.android.apps.common.testing.accessibility.framework.AccessibilityCheckResultUtils.matchesViews
 import com.google.android.material.floatingactionbutton.FloatingActionButton
 import com.nextcloud.android.lib.resources.files.FileDownloadLimit
+import com.nextcloud.test.Flaky
 import com.nextcloud.test.RetryTestRule
 import com.nextcloud.test.TestActivity
 import com.owncloud.android.AbstractIT
@@ -636,6 +637,7 @@ class FileDetailSharingFragmentIT : AbstractIT() {
     // for send new email
     @Test
     @Suppress("MagicNumber")
+    @Flaky("not stable")
     fun userOptionMenuFileSendNewEmail() {
         launchActivity<TestActivity>().use { scenario ->
             lateinit var sut: FileDetailSharingFragment
@@ -662,6 +664,7 @@ class FileDetailSharingFragmentIT : AbstractIT() {
     // for advanced permissions
     @Test
     @Suppress("MagicNumber")
+    @Flaky("not stable")
     fun userOptionMenuFolderAdvancePermission() {
         launchActivity<TestActivity>().use { scenario ->
             lateinit var sut: FileDetailSharingFragment
@@ -757,6 +760,7 @@ class FileDetailSharingFragmentIT : AbstractIT() {
     // for send new email
     @Test
     @Suppress("MagicNumber")
+    @Flaky(reason = "Share option menu occasionally does not open before the assertions run")
     fun userOptionMenuFolderSendNewEmail() {
         launchActivity<TestActivity>().use { scenario ->
             lateinit var sut: FileDetailSharingFragment
diff --git a/scripts/runCombinedTest.sh b/scripts/runCombinedTest.sh
index da44d3e3d488..b65aa64dd7c6 100755
--- a/scripts/runCombinedTest.sh
+++ b/scripts/runCombinedTest.sh
@@ -30,8 +30,12 @@ scripts/wait_for_emulator.sh || exit 1
 adb logcat -c
 adb logcat > logcat.txt &
 LOGCAT_PID=$!
+# Screenshot tests only run when updating/testing screenshots, tests annotated with
+# com.nextcloud.test.Flaky are known to be unstable and must not block a pull request.
+EXCLUDED_ANNOTATIONS="com.owncloud.android.utils.ScreenshotTest,com.nextcloud.test.Flaky"
+
 ./gradlew createGplayDebugCoverageReport \
--Pcoverage -Pandroid.testInstrumentationRunnerArguments.notAnnotation=com.owncloud.android.utils.ScreenshotTest \
+-Pcoverage -Pandroid.testInstrumentationRunnerArguments.notAnnotation="$EXCLUDED_ANNOTATIONS" \
 -Dorg.gradle.jvmargs="--add-opens java.base/java.nio=ALL-UNNAMED --add-opens java.base/java.nio.channels=ALL-UNNAMED --add-exports java.base/sun.nio.ch=ALL-UNNAMED"
 
 stat=$?