Please review my reply to your original post about the Expander within a ListView. https://www.telerik.com/forums/expander-as-listview-itemtemplate-works-on-android-but-not-on-ios
If you are still having an issue after making the adjustments required to ensure that the parent layout can support this case, please share the project so we can directly investigate.
Note that you are not able to attach a ZIP file to public forum post, but you can use an online service like OneDrive/DropBox to share a link with us.
Please delete the bin and obj fodler from every project in the solution before zipping it up. That will reduce the ZIP file size from hundreds of MBs to just a few MBs.
Lance | Manager - Technical Support