diff --git a/packages/zqlite/src/repro/not-exists.test.ts b/packages/zqlite/src/repro/not-exists.test.ts
new file mode 100644
index 0000000000..b3e7d68022
--- /dev/null
+++ b/packages/zqlite/src/repro/not-exists.test.ts
@@ -0,0 +1,113 @@
+/* eslint-disable @typescript-eslint/naming-convention */
+import {beforeEach, describe, expect, test} from 'vitest';
+import type {Schema} from '../../../zero-schema/src/schema.js';
+import {createQueryDelegate} from '../test/source-factory.js';
+import {
+  newQuery,
+  type QueryDelegate,
+} from '../../../zql/src/query/query-impl.js';
+import {must} from '../../../shared/src/must.js';
+
+describe('discord not-exists user report', () => {
+  let queryDelegate: QueryDelegate;
+  const TYL_trackableGroup = {
+    tableName: 'TYL_trackableGroup',
+    columns: {
+      trackableId: 'string',
+      group: 'string',
+      user_id: 'string',
+    },
+    primaryKey: ['trackableId', 'group'],
+  } as const;
+  const TYL_trackable = {
+    tableName: 'TYL_trackable',
+    columns: {
+      id: 'string',
+      name: 'string',
+    },
+    relationships: {
+      trackableGroup: {
+        sourceField: ['id'],
+        destField: ['trackableId'],
+        destSchema: TYL_trackableGroup,
+      },
+    },
+    primaryKey: ['id'],
+  } as const;
+
+  const schema = {
+    version: 1,
+    tables: {
+      TYL_trackableGroup,
+      TYL_trackable,
+    },
+  } satisfies Schema;
+  beforeEach(() => {
+    queryDelegate = createQueryDelegate(schema);
+
+    const trackableSource = must(queryDelegate.getSource('TYL_trackable'));
+    trackableSource.push({
+      type: 'add',
+      row: {
+        id: '001',
+        name: 'trackable 1',
+      },
+    });
+  });
+
+  test('not exists', () => {
+    const query = newQuery(queryDelegate, schema.tables.TYL_trackable)
+      .where(({not, exists}) =>
+        not(exists('trackableGroup', q => q.where('group', '=', 'archived'))),
+      )
+      .related('trackableGroup');
+
+    const view = query.materialize();
+
+    // trackable is there
+    expect(view.data).toMatchInlineSnapshot(`
+      [
+        {
+          "id": "001",
+          "name": "trackable 1",
+          "trackableGroup": [],
+        },
+      ]
+    `);
+
+    const trackableGroupSource = must(
+      queryDelegate.getSource('TYL_trackableGroup'),
+    );
+    trackableGroupSource.push({
+      type: 'add',
+      row: {
+        trackableId: '001',
+        group: 'archived',
+        user_id: '001',
+      },
+    });
+
+    // trackable removed due to `not exists trackableGroup where group = 'archived'`
+    expect(view.data).toMatchInlineSnapshot(`[]`);
+
+    trackableGroupSource.push({
+      type: 'remove',
+      row: {
+        trackableId: '001',
+        group: 'archived',
+        user_id: '001',
+      },
+    });
+
+    // trackable back since we deleted the archived group
+    expect(view.data).toMatchInlineSnapshot(`
+      [
+        {
+          "id": "001",
+          "name": "trackable 1",
+          "trackableGroup": [],
+        },
+      ]
+    `);
+  });
+});