diff --git a/packages/frontend/src/components/grid/MkGrid.vue b/packages/frontend/src/components/grid/MkGrid.vue
index 9ae04d7c2c49..7e4fd0ec917f 100644
--- a/packages/frontend/src/components/grid/MkGrid.vue
+++ b/packages/frontend/src/components/grid/MkGrid.vue
@@ -274,9 +274,6 @@ function onKeyDown(ev: KeyboardEvent) {
 			const bounds = rangedBounds.value;
 
 			handleKeyEvent(ev, [
-				{
-					code: 'any', handler: () => emitGridEvent({ type: 'keydown', event: ev }),
-				},
 				{
 					code: 'Delete', handler: () => {
 						if (rangedRows.value.length > 0) {
diff --git a/packages/frontend/src/components/grid/MkHeaderRow.vue b/packages/frontend/src/components/grid/MkHeaderRow.vue
index ee1c2ef53567..9821d5779432 100644
--- a/packages/frontend/src/components/grid/MkHeaderRow.vue
+++ b/packages/frontend/src/components/grid/MkHeaderRow.vue
@@ -4,7 +4,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 -->
 
 <template>
-<tr :class="$style.header">
+<tr>
 	<MkNumberCell
 		v-if="gridSetting.showNumber"
 		content="#"
@@ -46,9 +46,3 @@ defineProps<{
 }>();
 
 </script>
-
-<style module lang="scss">
-.header {
-
-}
-</style>
diff --git a/packages/frontend/src/components/grid/cell.ts b/packages/frontend/src/components/grid/cell.ts
index cb003f0dfd79..71b7a3e3f128 100644
--- a/packages/frontend/src/components/grid/cell.ts
+++ b/packages/frontend/src/components/grid/cell.ts
@@ -10,7 +10,7 @@ import { GridRow } from '@/components/grid/row.js';
 import { MenuItem } from '@/types/menu.js';
 import { GridContext } from '@/components/grid/grid-event.js';
 
-export type CellValue = string | boolean | number | undefined | null | Array<unknown> | Object;
+export type CellValue = string | boolean | number | undefined | null | Array<unknown> | NonNullable<unknown>;
 
 export type CellAddress = {
 	row: number;
@@ -64,6 +64,7 @@ export function createCell(
 				column,
 				row,
 				value,
+				allCells: [],
 			},
 			violations: [],
 		},
@@ -80,6 +81,7 @@ export function resetCell(cell: GridCell): void {
 			column: cell.column,
 			row: cell.row,
 			value: cell.value,
+			allCells: [],
 		},
 		violations: [],
 	};