diff --git a/Nextcloud.xcodeproj/project.pbxproj b/Nextcloud.xcodeproj/project.pbxproj
index fb4ae15b23..8409f7a395 100644
--- a/Nextcloud.xcodeproj/project.pbxproj
+++ b/Nextcloud.xcodeproj/project.pbxproj
@@ -5503,7 +5503,7 @@
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				COPY_PHASE_STRIP = NO;
-				CURRENT_PROJECT_VERSION = 3;
+				CURRENT_PROJECT_VERSION = 4;
 				DEBUG_INFORMATION_FORMAT = dwarf;
 				DEVELOPMENT_TEAM = NKUJUXUJ3B;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
@@ -5569,7 +5569,7 @@
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				COPY_PHASE_STRIP = NO;
-				CURRENT_PROJECT_VERSION = 3;
+				CURRENT_PROJECT_VERSION = 4;
 				DEVELOPMENT_TEAM = NKUJUXUJ3B;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				ENABLE_TESTABILITY = YES;
@@ -5867,8 +5867,8 @@
 			isa = XCRemoteSwiftPackageReference;
 			repositoryURL = "https://github.com/nextcloud/NextcloudKit";
 			requirement = {
-				branch = develop;
-				kind = branch;
+				kind = exactVersion;
+				version = 5.0.2;
 			};
 		};
 		F788ECC5263AAAF900ADC67F /* XCRemoteSwiftPackageReference "MarkdownKit" */ = {
diff --git a/iOSClient/Media/NCMedia.swift b/iOSClient/Media/NCMedia.swift
index 8de4ed4684..1592201655 100644
--- a/iOSClient/Media/NCMedia.swift
+++ b/iOSClient/Media/NCMedia.swift
@@ -53,8 +53,8 @@ class NCMedia: UIViewController {
     var isTop: Bool = true
     var isEditMode = false
     var fileSelect: [String] = []
-    var filesExists: [String] = []
-    var ocIdDoNotExists: [String] = []
+    var filesExists: ThreadSafeArray<String> = ThreadSafeArray()
+    var ocIdDoNotExists: ThreadSafeArray<String> = ThreadSafeArray()
     var hasRunSearchMedia: Bool = false
     var attributesZoomIn: UIMenuElement.Attributes = []
     var attributesZoomOut: UIMenuElement.Attributes = []
@@ -292,10 +292,12 @@ class NCMedia: UIViewController {
             ocIdDoNotExists.append(ocId)
         }
 
-        if NCNetworking.shared.fileExistsQueue.operationCount == 0, !ocIdDoNotExists.isEmpty {
+        if NCNetworking.shared.fileExistsQueue.operationCount == 0,
+           !ocIdDoNotExists.isEmpty,
+           let ocIdDoNotExists = self.ocIdDoNotExists.getArray() {
             dataSource.removeMetadata(ocIdDoNotExists)
             database.deleteMetadataOcIds(ocIdDoNotExists)
-            ocIdDoNotExists.removeAll()
+            self.ocIdDoNotExists.removeAll()
             collectionViewReloadData()
         }
     }