diff --git a/src/main/java/org/cryptomator/ui/keyloading/hub/ReceiveKeyController.java b/src/main/java/org/cryptomator/ui/keyloading/hub/ReceiveKeyController.java
index ee584b764..be4c3b791 100644
--- a/src/main/java/org/cryptomator/ui/keyloading/hub/ReceiveKeyController.java
+++ b/src/main/java/org/cryptomator/ui/keyloading/hub/ReceiveKeyController.java
@@ -70,7 +70,7 @@ public class ReceiveKeyController implements FxController {
 				.build();
 		httpClient.sendAsync(request, HttpResponse.BodyHandlers.ofInputStream()) //
 				.thenAcceptAsync(this::loadedExistingKey, Platform::runLater) //
-				.exceptionallyAsync(this::retrievalFailed, Platform::runLater);
+				.exceptionally(this::retrievalFailed);
 	}
 
 	private void loadedExistingKey(HttpResponse<InputStream> response) {
diff --git a/src/main/java/org/cryptomator/ui/keyloading/hub/RegisterDeviceController.java b/src/main/java/org/cryptomator/ui/keyloading/hub/RegisterDeviceController.java
index 721573755..890ae55a0 100644
--- a/src/main/java/org/cryptomator/ui/keyloading/hub/RegisterDeviceController.java
+++ b/src/main/java/org/cryptomator/ui/keyloading/hub/RegisterDeviceController.java
@@ -76,7 +76,7 @@ public class RegisterDeviceController implements FxController {
 				.build();
 		httpClient.sendAsync(request, HttpResponse.BodyHandlers.discarding()) //
 				.thenAcceptAsync(this::registrationSucceeded, Platform::runLater) //
-				.exceptionallyAsync(this::registrationFailed, Platform::runLater);
+				.exceptionally(this::registrationFailed);
 	}
 
 	private void registrationSucceeded(HttpResponse<Void> voidHttpResponse) {