Thank you for contacting Syncfusion support.
Based on the provided information, we have checked the reported issue “Popup Layout content template value not binding when reopening the Popup view” in Xamarin.Forms and it is working fine as expected from our end. We have checked by adding ContentTemplate to the Popup view and tested in all platforms and we unable to replicate the issue.
Please find the sample we tested for our reference,
Please check the sample and let us know if you still facing the same issue? If not, please modify the sample based on your scenario and revert us back with the following details,
· Issue reproducing platform (Android / iOS/ UWP)
· Clear replication procedure to replicate the issue
· Syncfusion and Xamarin.Forms update version
It will be helpful for us to check on it and provide you the solution at the earliest.
Subburaj Pandian V