diff --git a/web/app/components/datasets/create/step-two/components/__tests__/inputs.spec.tsx b/web/app/components/datasets/create/step-two/components/__tests__/inputs.spec.tsx
index 28c640cdbe..2c0480e508 100644
--- a/web/app/components/datasets/create/step-two/components/__tests__/inputs.spec.tsx
+++ b/web/app/components/datasets/create/step-two/components/__tests__/inputs.spec.tsx
@@ -33,6 +33,22 @@ describe('DelimiterInput', () => {
     // Tooltip triggers render; component mounts without error
     expect(screen.getByText(`${ns}.stepTwo.separator`)).toBeInTheDocument()
   })
+
+  it('should suppress onChange during IME composition', () => {
+    const onChange = vi.fn()
+    const finalValue = 'wu'
+    render(<DelimiterInput value="" onChange={onChange} />)
+    const input = screen.getByPlaceholderText(`${ns}.stepTwo.separatorPlaceholder`)
+
+    fireEvent.compositionStart(input)
+    fireEvent.change(input, { target: { value: 'w' } })
+    fireEvent.change(input, { target: { value: finalValue } })
+    expect(onChange).not.toHaveBeenCalled()
+
+    fireEvent.compositionEnd(input)
+    expect(onChange).toHaveBeenCalledTimes(1)
+    expect(onChange.mock.calls[0][0].target.value).toBe(finalValue)
+  })
 })
 
 describe('MaxLengthInput', () => {
diff --git a/web/app/components/datasets/create/step-two/components/inputs.tsx b/web/app/components/datasets/create/step-two/components/inputs.tsx
index 9d40f511f9..4733852d19 100644
--- a/web/app/components/datasets/create/step-two/components/inputs.tsx
+++ b/web/app/components/datasets/create/step-two/components/inputs.tsx
@@ -1,6 +1,7 @@
 import type { FC, PropsWithChildren, ReactNode } from 'react'
 import type { InputProps } from '@/app/components/base/input'
 import type { NumberFieldInputProps, NumberFieldRootProps, NumberFieldSize } from '@/app/components/base/ui/number-field'
+import { useRef, useState } from 'react'
 import { useTranslation } from 'react-i18next'
 import Input from '@/app/components/base/input'
 import Tooltip from '@/app/components/base/tooltip'
@@ -16,7 +17,7 @@ import {
 import { env } from '@/env'
 
 const TextLabel: FC<PropsWithChildren> = (props) => {
-  return <label className="text-xs font-semibold leading-none text-text-secondary">{props.children}</label>
+  return <label className="text-xs leading-none font-semibold text-text-secondary">{props.children}</label>
 }
 
 const FormField: FC<PropsWithChildren<{ label: ReactNode }>> = (props) => {
@@ -28,8 +29,11 @@ const FormField: FC<PropsWithChildren<{ label: ReactNode }>> = (props) => {
   )
 }
 
-export const DelimiterInput: FC<InputProps & { tooltip?: string }> = (props) => {
+export const DelimiterInput: FC<InputProps & { tooltip?: string }> = ({ tooltip, onChange, value, ...rest }) => {
   const { t } = useTranslation()
+  const isComposing = useRef(false)
+  const [compositionValue, setCompositionValue] = useState('')
+
   return (
     <FormField label={(
       <div className="mb-1 flex items-center">
@@ -37,7 +41,7 @@ export const DelimiterInput: FC<InputProps & { tooltip?: string }> = (props) =>
         <Tooltip
           popupContent={(
             <div className="max-w-[200px]">
-              {props.tooltip || t('stepTwo.separatorTip', { ns: 'datasetCreation' })}
+              {tooltip || t('stepTwo.separatorTip', { ns: 'datasetCreation' })}
             </div>
           )}
         />
@@ -48,7 +52,24 @@ export const DelimiterInput: FC<InputProps & { tooltip?: string }> = (props) =>
         type="text"
         className="h-9"
         placeholder={t('stepTwo.separatorPlaceholder', { ns: 'datasetCreation' })!}
-        {...props}
+        value={isComposing.current ? compositionValue : value}
+        onChange={(e) => {
+          if (isComposing.current)
+            setCompositionValue(e.target.value)
+          else
+            onChange?.(e)
+        }}
+        onCompositionStart={() => {
+          isComposing.current = true
+          setCompositionValue(String(value ?? ''))
+        }}
+        onCompositionEnd={(e) => {
+          const committed = e.currentTarget.value
+          isComposing.current = false
+          setCompositionValue('')
+          onChange?.({ ...e, target: { ...e.target, value: committed } } as unknown as React.ChangeEvent<HTMLInputElement>)
+        }}
+        {...rest}
       />
     </FormField>
   )
diff --git a/web/eslint-suppressions.json b/web/eslint-suppressions.json
index 7180bd677a..1077b4c1fd 100644
--- a/web/eslint-suppressions.json
+++ b/web/eslint-suppressions.json
@@ -4291,9 +4291,6 @@
   "app/components/datasets/create/step-two/components/inputs.tsx": {
     "no-restricted-imports": {
       "count": 1
-    },
-    "tailwindcss/enforce-consistent-class-order": {
-      "count": 1
     }
   },
   "app/components/datasets/create/step-two/components/option-card.tsx": {