How i can upload tow image in a form Shopware 6

i a m new in Shopware . I developed a plugin in my plugin i need upload two image in a form .

I can drag a pic from Sidebar media in second input media and save it with out any problem. but my problem is there .i can not upload pic in second upload.this is my code .how i can do it?

  <sw-card v-if="blog" :isLoading="isLoading" :title="$t('ak-blog.detail.section.image')">
            <sw-upload-store-listener :uploadTag="blog.id" @media-upload-finish="onSetMediaItem" autoUpload></sw-upload-store-listener>
            <sw-media-upload :label="$tc('ak-blog.detail.label.imageBig')" variant="regular"
                             :source="mediaItem" :uploadTag="blog.id" :allowMultiSelect="false"
                             @media-drop="onMediaDropped"
                             @media-upload-sidebar-open="openMediaSidebar"
                             @media-upload-remove-image="onRemoveMediaItem">
            </sw-media-upload>
        </sw-card>

         <sw-card v-if="blog" :isLoading="isLoading" :title="$t('ak-blog.detail.section.image')">
            <sw-upload-store-listener :uploadTag="blog.id" @media-upload-finish="onSetMediaItemImageSmall" autoUpload></sw-upload-store-listener>
            <sw-media-upload :label="$tc('ak-blog.detail.label.imageSmall')" variant="regular"
                             :source="mediaItemImageSmall" :uploadTagSmallImage="blog.id" :allowMultiSelect="false"
                             @media-drop="onMediaDroppedImageSmall"
                             @media-upload-sidebar-open="openMediaSidebarImageSmall"
                             @media-upload-remove-image="onRemoveMediaItemImageSmall">
            </sw-media-upload>
        </sw-card>