Hi Emil,
Thanks for contacting Syncfusion support.
We have checked your call stack and could you please install our SfDataGrid control latest NuGet(15.3.0.29) after clear the NuGet cache from your machine. Please refer the below KB link to get more details about NuGet cache clear
Whenever a new NuGet package is installed, the NuGet will be stored in NuGet cache location. So please clear the NuGet cache from your machine and install new NuGet.
Still you facing same issue, please share your SfDataGrid definition code snippet and SfDataGrid version in both PCL and Renderer project, that would be more helpful for further analyse.
Regards,
Ashok