SAP Fiori: my Quotation doesn't work for smartphone

Hi,

we are using the SAP standard Fiori app "myQuotations". The app runs perfectly on desktop and tablet, but we encounter an issue while using the smartphone.

In the product search view (ProductSearch.view.xml) we can't navigate to the detail view ProductDetail.view.xml. The Material search screen doen't react at all.

The product search view is using the SAPUI5 control "CustomListItem", but it seems no event will be fired.

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<List id="list" mode="{device>/listMode}" select="_handleSelect"

                   growing="true" growingThreshold="50" growingScrollToLoad="true" noDataText="{i18n>NODATA}">

  <CustomListItem>

  <ObjectIdentifier id="PROD_LIST_ITEM" type="{device>/listItemType}"

  title="{path:'MaterialDesc', formatter:'zsd_myquot_v10.util.Formatter.formatMatDesc'}"

  text="{MaterialId}"

  titlePress="_handleItemPress"

  class="sapMListTblCell" />

  </CustomListItem>

  </ObjectListItem> 

  </List>

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Has anybody an idea what could be the problem?

Thanks a lot in advance

Kind regards

Axel