diff --git a/@packages/ui/elements/InputNumber.tsx b/@packages/ui/elements/InputNumber.tsx
index b9446f1..dc37f00 100644
--- a/@packages/ui/elements/InputNumber.tsx
+++ b/@packages/ui/elements/InputNumber.tsx
@@ -14,10 +14,18 @@ export default (function InputNumber({
   help,
   ...props
 }: BaseElementProps<number>) {
+  function handleChange(value: number | null) {
+    if (value) {
+      setValue(value);
+    } else {
+      setValue(0);
+    }
+  }
+
   return (
     <FormItem hasFeedback validateStatus={isValid === false ? 'error' : ''} help={help}>
       <AntInputNumber
-        onChange={setValue}
+        onChange={handleChange}
         disabled={status === 'Disabled'}
         style={{
           width: '100%',
diff --git a/@packages/ui/elements/Segmented.tsx b/@packages/ui/elements/Segmented.tsx
index e43d3bd..cf3a8a7 100644
--- a/@packages/ui/elements/Segmented.tsx
+++ b/@packages/ui/elements/Segmented.tsx
@@ -21,6 +21,8 @@ export default (function Segmented({
   return (
     <FormItem hasFeedback validateStatus={isValid === false ? 'error' : ''} help={help}>
       <AntSegmented
+        onResize={undefined}
+        onResizeCapture={undefined}
         value={value}
         onChange={setValue}
         disabled={status === 'Disabled'}
diff --git a/process/payments/validation.ts b/process/payments/validation.ts
index 3dd671c..d84231b 100644
--- a/process/payments/validation.ts
+++ b/process/payments/validation.ts
@@ -61,7 +61,7 @@ export default function validatePaymentsTable({ $calculation, $tables }: RootSto
       {
         const targetPayments = $tables.payments.values.slice(1, 4);
 
-        if (max(targetPayments) - min(targetPayments) > 10) {
+        if ((max(targetPayments) || 0) - (min(targetPayments) || 0) > 10) {
           return 'Указана очень жесткая дегрессия';
         }
       }