|  | @@ -107,6 +107,7 @@ const StepTwo = ({
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				|  |  |    const fileIndexingEstimate = (() => {
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				|  |  |      return segmentationType === SegmentType.AUTO ? automaticFileIndexingEstimate : customFileIndexingEstimate
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				|  |  |    })()
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				|  |  | +  const [isCreating, setIsCreating] = useState(false)
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				|  |  |  
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				|  |  |    const scrollHandle = (e: Event) => {
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				|  |  |      if ((e.target as HTMLDivElement).scrollTop > 0)
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				|  | @@ -277,7 +278,7 @@ const StepTwo = ({
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				|  |  |        } as CreateDocumentReq
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				|  |  |        if (dataSourceType === DataSourceType.FILE) {
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				|  |  |          params.data_source.info_list.file_info_list = {
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				|  |  | -          file_ids: files.map(file => file.id),
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				|  |  | +          file_ids: files.map(file => file.id || '').filter(Boolean),
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				|  |  |          }
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				|  |  |        }
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				|  |  |        if (dataSourceType === DataSourceType.NOTION)
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				|  | @@ -321,6 +322,7 @@ const StepTwo = ({
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				|  |  |      try {
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				|  |  |        let res
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				|  |  |        const params = getCreationParams()
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				|  |  | +      setIsCreating(true)
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				|  |  |        if (!datasetId) {
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				|  |  |          res = await createFirstDocument({
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				|  |  |            body: params,
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				|  | @@ -347,6 +349,9 @@ const StepTwo = ({
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				|  |  |          message: `${err}`,
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				|  |  |        })
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				|  |  |      }
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				|  |  | +    finally {
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				|  |  | +      setIsCreating(false)
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				|  |  | +    }
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				|  |  |    }
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				|  |  |  
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				|  |  |    const handleSwitch = (state: boolean) => {
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				|  | @@ -622,7 +627,7 @@ const StepTwo = ({
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				|  |  |                    <>
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				|  |  |                      <div className='mb-2 text-xs font-medium text-gray-500'>{t('datasetCreation.stepTwo.fileSource')}</div>
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				|  |  |                      <div className='flex items-center text-sm leading-6 font-medium text-gray-800'>
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				|  |  | -                      <span className={cn(s.fileIcon, files.length && s[files[0].extension])} />
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				|  |  | +                      <span className={cn(s.fileIcon, files.length && s[files[0].extension || ''])} />
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				|  |  |                        {getFileName(files[0].name || '')}
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				|  |  |                        {files.length > 1 && (
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				|  |  |                          <span className={s.sourceCount}>
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				|  | @@ -676,12 +681,12 @@ const StepTwo = ({
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				|  |  |                  <div className='flex items-center mt-8 py-2'>
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				|  |  |                    <Button onClick={() => onStepChange && onStepChange(-1)}>{t('datasetCreation.stepTwo.lastStep')}</Button>
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				|  |  |                    <div className={s.divider} />
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				|  |  | -                  <Button type='primary' onClick={createHandle}>{t('datasetCreation.stepTwo.nextStep')}</Button>
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				|  |  | +                  <Button loading={isCreating} type='primary' onClick={createHandle}>{t('datasetCreation.stepTwo.nextStep')}</Button>
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				|  |  |                  </div>
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				|  |  |                )
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				|  |  |                : (
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				|  |  |                  <div className='flex items-center mt-8 py-2'>
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				|  |  | -                  <Button type='primary' onClick={createHandle}>{t('datasetCreation.stepTwo.save')}</Button>
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				|  |  | +                  <Button loading={isCreating} type='primary' onClick={createHandle}>{t('datasetCreation.stepTwo.save')}</Button>
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				|  |  |                    <Button className='ml-2' onClick={onCancel}>{t('datasetCreation.stepTwo.cancel')}</Button>
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				|  |  |                  </div>
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				|  |  |                )}
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