Thank you for contacting Syncfusion support.
We have checked your query “DataGrid is not working properly when navigate from master Detail page at SecondTime” and unable to reproduce the issue from our side. When navigate the DataGrid at second time from master detail page will work fine has expected. We have attached the tested sample for your reference and video for the same.
SfDataGrid version : 126.96.36.199
Xamarin Forms version : 188.8.131.528675
If the sample doesn’t meet your requirement, kindly modify the sample based on your scenario and revert us back with replication, it will be helpful for us to give you a better solution.
Please let us know the following details:
* SfDataGrid Version
* Xamarin Forms Version
* Device Details