scroll-view 第一页有时候不显示

大佬们我这块用了个scroll-view 中套了个uni-grid 有时候加载完就成了这个样子，有时候是正常的
<scroll-view class="scroll-view_H" scroll-x="true">
<view v-for="(count,scrollIndex) in scrollCount" :key="scrollIndex" class="scroll-view-item_H">
<uni-grid :column="scrollColumn" :showBorder="false" :square="true" :highlight="true" @change="clickCatalog">
<uni-grid-item v-for="(item,index) in catalogs" :key="index" v-if="(index >= scrollIndexscrollColumn2) && (index < (scrollIndex+1)scrollColumn2) " :cid="item.id" :cname="item.name">
<view class="cu-avatar round" :style="{backgroundImage:'url('+item.catUrl+')'}"></view>
<text class="text-xs text-gray padding-top-sm">{{item.name}}</text>
</uni-grid-item>
</uni-grid>
</view>
</scroll-view>