diff --git a/frontend/src/lib/document/annotation/AnnotationLayer.svelte.spec.ts b/frontend/src/lib/document/annotation/AnnotationLayer.svelte.spec.ts
index b134c50f..3c5aea0b 100644
--- a/frontend/src/lib/document/annotation/AnnotationLayer.svelte.spec.ts
+++ b/frontend/src/lib/document/annotation/AnnotationLayer.svelte.spec.ts
@@ -107,7 +107,7 @@ describe('AnnotationLayer', () => {
 		});
 
 		await expect.element(page.getByTestId('annotation-ann-1')).toBeInTheDocument();
-		expect(page.getByTestId('annotation-delete-ann-1').query()).toBeNull();
+		await expect.element(page.getByTestId('annotation-delete-ann-1')).not.toBeInTheDocument();
 	});
 
 	it('does not show delete button when canDraw is false even if annotation is active', async () => {
@@ -120,6 +120,6 @@ describe('AnnotationLayer', () => {
 		});
 
 		await expect.element(page.getByTestId('annotation-ann-1')).toBeInTheDocument();
-		expect(page.getByTestId('annotation-delete-ann-1').query()).toBeNull();
+		await expect.element(page.getByTestId('annotation-delete-ann-1')).not.toBeInTheDocument();
 	});
 });
diff --git a/frontend/src/lib/document/annotation/AnnotationShape.svelte.spec.ts b/frontend/src/lib/document/annotation/AnnotationShape.svelte.spec.ts
index 87f1cae1..a896489b 100644
--- a/frontend/src/lib/document/annotation/AnnotationShape.svelte.spec.ts
+++ b/frontend/src/lib/document/annotation/AnnotationShape.svelte.spec.ts
@@ -45,7 +45,7 @@ describe('AnnotationShape', () => {
 			onpointerleave: () => {}
 		});
 
-		expect(page.getByTestId('annotation-delete-ann-1').query()).toBeNull();
+		await expect.element(page.getByTestId('annotation-delete-ann-1')).not.toBeInTheDocument();
 	});
 
 	it('does not show delete button when showDelete is true but neither hovered nor active', async () => {
@@ -60,7 +60,7 @@ describe('AnnotationShape', () => {
 			onpointerleave: () => {}
 		});
 
-		expect(page.getByTestId('annotation-delete-ann-1').query()).toBeNull();
+		await expect.element(page.getByTestId('annotation-delete-ann-1')).not.toBeInTheDocument();
 	});
 
 	it('shows delete button when showDelete is true and isHovered is true', async () => {
diff --git a/frontend/src/lib/ocr/OcrTrainingCard.svelte.spec.ts b/frontend/src/lib/ocr/OcrTrainingCard.svelte.spec.ts
index d1aec9b8..c72e877a 100644
--- a/frontend/src/lib/ocr/OcrTrainingCard.svelte.spec.ts
+++ b/frontend/src/lib/ocr/OcrTrainingCard.svelte.spec.ts
@@ -1,4 +1,4 @@
-import { afterEach, describe, expect, it, vi } from 'vitest';
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
 import { cleanup, render } from 'vitest-browser-svelte';
 import { page } from 'vitest/browser';
 import OcrTrainingCard from './OcrTrainingCard.svelte';
@@ -74,6 +74,12 @@ describe('OcrTrainingCard — enabled state', () => {
 });
 
 describe('OcrTrainingCard — success dismiss button', () => {
+	beforeEach(() => vi.useFakeTimers());
+	afterEach(() => {
+		vi.runAllTimers();
+		vi.useRealTimers();
+	});
+
 	it('dismiss button has 44×44px touch target (h-11 w-11)', async () => {
 		vi.stubGlobal('fetch', vi.fn().mockResolvedValue({ ok: true }));
 
@@ -108,7 +114,9 @@ describe('OcrTrainingCard — in-flight state', () => {
 		// While fetch is still pending the button label becomes "…"
 		await expect.element(page.getByRole('button', { name: '…' })).toBeInTheDocument();
 
-		// Cleanup: resolve the pending promise
 		resolveFetch({ ok: false });
+		await expect
+			.element(page.getByRole('button', { name: /Training starten/i }))
+			.not.toBeDisabled();
 	});
 });