diff --git a/web/src/routes/modules/+page.svelte b/web/src/routes/modules/+page.svelte
index 5422751..2037a70 100644
--- a/web/src/routes/modules/+page.svelte
+++ b/web/src/routes/modules/+page.svelte
@@ -120,6 +120,14 @@
 		}
 	}
 
+	function moduleIntervalLabel(moduleRow: ModuleRow): string {
+		const cron = typeof moduleRow.cron_expr === 'string' ? moduleRow.cron_expr.trim() : moduleRow.cron_expr;
+		if (cron) return cron;
+		return moduleRow.refresh_interval_sec !== null && moduleRow.refresh_interval_sec !== undefined
+			? `${moduleRow.refresh_interval_sec}с`
+			: '—';
+	}
+
 	function toggleModuleSelection(id: string) {
 		const next = new Set(selectedModuleIds);
 		if (next.has(id)) next.delete(id);
@@ -237,9 +245,7 @@
 							</TableCell>
 							<TableCell class="text-muted-foreground">{m.priority}</TableCell>
 							<TableCell class="text-muted-foreground font-mono text-xs">
-								{m.cron_expr ?? (m.refresh_interval_sec !== null && m.refresh_interval_sec !== undefined
-									? `${m.refresh_interval_sec}с`
-									: '—')}
+								{moduleIntervalLabel(m)}
 							</TableCell>
 							<TableCell>
 								{#if m.enabled}
@@ -286,7 +292,7 @@
 						{moduleTypes.find((t) => t.value === form.type)?.label ?? 'Выберите тип'}
 					</SelectTrigger>
 					<SelectContent>
-						{#each moduleTypes as t}
+						{#each moduleTypes as t (t.value)}
 							<SelectItem value={t.value}>{t.label}</SelectItem>
 						{/each}
 					</SelectContent>
diff --git a/web/src/routes/modules/[moduleId]/+page.svelte b/web/src/routes/modules/[moduleId]/+page.svelte
index 4bdffb4..e30b640 100644
--- a/web/src/routes/modules/[moduleId]/+page.svelte
+++ b/web/src/routes/modules/[moduleId]/+page.svelte
@@ -146,6 +146,8 @@
 	// Module edit
 	let editDialog = $state(false);
 	let editForm = $state<ModulePatch>({});
+	let editDefaultCommunitySelect = $state('__none__');
+	let editDohProfileSelect = $state('__none__');
 	let editSaving = $state(false);
 	let deleteModDialog = $state(false);
 	let deletingMod = $state(false);
@@ -265,13 +267,28 @@
 			default_community_id: mod.default_community_id,
 			doh_profile_id: mod.doh_profile_id
 		};
+		editDefaultCommunitySelect = nullableSelectValue(mod.default_community_id);
+		editDohProfileSelect = nullableSelectValue(mod.doh_profile_id);
 		editDialog = true;
 	}
 
 	async function saveMod() {
 		editSaving = true;
 		try {
-			await apiMutate<ModuleRow>(`/v1/modules/${moduleId}`, 'PATCH', editForm);
+			const cron = typeof editForm.cron_expr === 'string' ? editForm.cron_expr.trim() : editForm.cron_expr;
+			const intervalRaw = editForm.refresh_interval_sec;
+			const interval =
+				intervalRaw === null || intervalRaw === undefined
+					? null
+					: Number(intervalRaw);
+			const payload: ModulePatch = {
+				...editForm,
+				cron_expr: cron ? cron : null,
+				refresh_interval_sec: Number.isFinite(interval) ? interval : null,
+				default_community_id: fromNullableSelect(editDefaultCommunitySelect),
+				doh_profile_id: fromNullableSelect(editDohProfileSelect)
+			};
+			await apiMutate<ModuleRow>(`/v1/modules/${moduleId}`, 'PATCH', payload);
 			await loadMod();
 			toast.success('Модуль обновлён');
 			editDialog = false;
@@ -733,6 +750,14 @@
 		return value;
 	}
 
+	function moduleIntervalLabel(moduleRow: ModuleRow): string {
+		const cron = typeof moduleRow.cron_expr === 'string' ? moduleRow.cron_expr.trim() : moduleRow.cron_expr;
+		if (cron) return cron;
+		return moduleRow.refresh_interval_sec !== null && moduleRow.refresh_interval_sec !== undefined
+			? `${moduleRow.refresh_interval_sec}с`
+			: '—';
+	}
+
 	const activeTab = $derived.by(() => {
 		if (!mod) return 'entries';
 		switch (mod.type) {
@@ -810,7 +835,7 @@
 			<Card class="bg-chart-5/10 p-3">
 				<p class="text-muted-foreground flex items-center gap-1.5 text-xs"><Timer class="size-3.5" />Интервал</p>
 				<p class="font-semibold font-mono text-sm">
-					{mod.cron_expr ?? (mod.refresh_interval_sec !== null && mod.refresh_interval_sec !== undefined ? `${mod.refresh_interval_sec}с` : '—')}
+					{moduleIntervalLabel(mod)}
 				</p>
 			</Card>
 			<Card class="bg-chart-4/10 p-3">
@@ -1281,8 +1306,9 @@
 				<Label for="e-comm">Community по умолчанию</Label>
 				<Select
 					type="single"
-					value={nullableSelectValue(editForm.default_community_id)}
+					value={editDefaultCommunitySelect}
 					onValueChange={(v) => {
+						editDefaultCommunitySelect = nullableSelectValue(v);
 						editForm.default_community_id = fromNullableSelect(v);
 					}}
 				>
@@ -1301,8 +1327,9 @@
 				<Label for="e-doh">DoH профиль</Label>
 				<Select
 					type="single"
-					value={nullableSelectValue(editForm.doh_profile_id)}
+					value={editDohProfileSelect}
 					onValueChange={(v) => {
+						editDohProfileSelect = nullableSelectValue(v);
 						editForm.doh_profile_id = fromNullableSelect(v);
 					}}
 				>